{"title":"Generale Ressorts Mainsprings","description":"\u003cp\u003eGenerale Ressorts is the world leader in high-quality aftermarket mainsprings. We stock Swiss-made GR mainsprings compatible with leading watch movement makers, including \u003ca href=\"\/collections\/eta-mainsprings\"\u003eETA\u003c\/a\u003e, \u003ca href=\"\/collections\/omega-mainsprings\"\u003eOmega\u003c\/a\u003e, \u003ca href=\"\/collections\/rolex-mainsprings\"\u003eRolex\u003c\/a\u003e, \u003ca href=\"\/collections\/seiko-mainsprings\"\u003eSeiko\u003c\/a\u003e, \u003ca href=\"\/collections\/hamilton-compatible-mainsprings\"\u003eHamilton\u003c\/a\u003e, and \u003ca href=\"https:\/\/amplitudeparts.com\/collections\/longines-compatible-mainsprings\"\u003eLongines\u003c\/a\u003e. Shipped directly from the USA, so there's no need to worry about tariffs or long international shipping delays.\u003c\/p\u003e","products":[{"product_id":"seiko-7s26-7s36-7009-mainspring","title":"Seiko 7S26 Mainspring (Fits 7S36, 7002, 7009)","description":"\u003cp class=\"p3\"\u003e\u003cstrong\u003eGenuine Generale Ressorts Swiss-made \u003cspan class=\"s1\"\u003ereplacement mainspring for Seiko 7S26, 7S36, 7002, 7009, 7019 and related automatic movements\u003c\/span\u003e.\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThe Seiko 7S26, 7009 and related movements underpinned Seiko’s success in mass-produced automatic watches. The 7S26 in particular powers many well-known Seiko watches, including collectible divers such as the SKX007 and the \"Monster\" divers.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eIf you’re servicing a Seiko 7S26, 7009 or similar movement, a high-quality replacement mainspring is important for proper fit and performance. A poorly made mainspring can cause fitment problems with the arbor or barrel and may not deliver the amplitude expected from a properly serviced movement. Here, \u003cmeta charset=\"utf-8\"\u003ethere's no mystery about what you’re installing: a branded mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eIs GR2377X compatible with the Seiko 7S26?\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eYes. \u003cspan class=\"s1\"\u003e\u003cb\u003eGR2377X is a replacement mainspring for the Seiko 7S26\u003c\/b\u003e\u003c\/span\u003e, including the 7S26A, 7S26B and 7S26C, as well as the related 7S36 family and several earlier Seiko automatic movements.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eCompatible Seiko Movements\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e7S26A\u003c\/li\u003e\n\u003cli\u003e7S26B\u003c\/li\u003e\n\u003cli\u003e7S26C\u003c\/li\u003e\n\u003cli\u003e7S36A\u003c\/li\u003e\n\u003cli\u003e7S36B\u003c\/li\u003e\n\u003cli\u003e7S36C\u003c\/li\u003e\n\u003cli\u003e7002\u003c\/li\u003e\n\u003cli\u003e7009\u003c\/li\u003e\n\u003cli\u003e7019\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p4\"\u003e\u003cb\u003eManufacturer:\u003c\/b\u003e\u003cspan class=\"s2\"\u003e Generale Ressorts\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e GR2377X\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eType:\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e Automatic mainspring\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eHeight:\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e 0.95 mm\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eThickness:\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e 0.11 mm\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eLength:\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e 400 mm\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eBarrel Diameter:\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e 10 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p5\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/span\u003e\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533551806,"sku":"GR2377X","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR2377X_B_mod.jpg?v=1787763672"},{"product_id":"seiko-6309-6119-6106-mainspring","title":"Seiko 6309, 6119, 6105 Mainspring","description":"\u003cp\u003eGenuine Generale Ressorts high-quality Swiss-made mainspring, compatible with \u003cmeta charset=\"utf-8\"\u003eSeiko \u003cmeta charset=\"utf-8\"\u003e6105, 6106, 6117, 6118, 6119, 6309, 6319.\u003c\/p\u003e\n\u003cp\u003eThe Seiko 6000 and 6300 movement families represent the golden age of Seiko’s watchmaking from the late 1960s through the 1980s. These power the legendary Seiko divers like the 6309 and 6105, workhorses like the 6119, and collectible watches like the 6117 World Time and Navigator Timer. If you're servicing one of these watches you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? Generale Ressorts, of Switzerland, is the highest-quality maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: Seiko \u003cmeta charset=\"utf-8\"\u003e6105, 6106, 6117, 6118, 6119, 6309, 6319\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: \u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eGR2534X\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eReplacement for: Seiko 401.615 (401615)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eHeight: 1.05mm\u003cbr\u003eThickness: 0.115mm\u003cbr\u003eLength: 420mm\u003cbr\u003eBarrel Diameter: 10.5mm\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003eCompatibility Notes: \"I recently used one of these for my Seiko Navigator Timer (6117-6410). The arbor fit was perfect, and it gave me an immediate 40 degree boost in amplitude.\"--Mike\u003c\/p\u003e","brand":"GR","offers":[{"title":"Single","offer_id":49363213713598,"sku":"GR2534X-1","price":24.0,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49363213746366,"sku":"GR2534X-2","price":67.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR2534X_B_mod.jpg?v=1787763649"},{"product_id":"seiko-5606-5626-mainspring","title":"Seiko 5606 and 5626 Mainspring","description":"\u003cp\u003eGenuine Generale Ressorts high-quality Swiss-made mainspring, c\u003cspan\u003eompatible With \u003c\/span\u003e\u003cspan\u003eSeiko \u003c\/span\u003e\u003cspan\u003e5606 and 5626 movements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Seiko 5606 and 5626 were landmark movements introduced in 1968. These power the classic Lord Matic line of watches. If you're servicing a Seiko \u003cmeta charset=\"utf-8\"\u003e5606 or 5626, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? Generale Ressorts, of Switzerland, is the highest-quality maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eSeiko \u003cmeta charset=\"utf-8\"\u003e5606 and 5626\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eManufacturer: \u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e24571X\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eHeight: 1.00mm\u003cbr\u003eThickness: 0.11mm\u003cbr\u003eLength: 420mm\u003cbr\u003eBarrel Diameter: 10mm\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533617342,"sku":"GR24571X","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR24571X_B_mod.jpg?v=1787763618"},{"product_id":"seiko-6139-6138-mainspring","title":"Seiko 6139, 6138 Mainspring (also fits ETA 2892, 2893, Omega 1120)","description":"\u003cp\u003eGenuine Generale Ressorts high-quality Swiss-made mainspring, compatible with the Seiko 6139 and 6138 movements, the Omega 1120 series, and the ETA 2892 family.\u003c\/p\u003e\n\u003cp\u003eThe Seiko 6138 and 6139 were revolutionary movements that powered the classic Seiko chronograph watches, starting in 1969. \u003c\/p\u003e\n\u003cp\u003eThe Omega 1120 and related ETA-based movements are an important bridge between the company’s earlier mechanical calibers and the later Co-Axial era. These were based on the ETA 2892 series, so this mainspring (\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eGR25341X) fits a remarkable list of great movements. \u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003eCompatible With:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko 6139 \u0026amp; 6138 (\u003cmeta charset=\"utf-8\"\u003eSeiko part numbers 401615 or \u003cmeta charset=\"utf-8\"\u003e401616).\u003c\/li\u003e\n\u003cli\u003eOmega 1109, 1110, 1111, 1120, 1120A, 1128, 1140, 1143, 3220, 3220A\u003c\/li\u003e\n\u003cli\u003eETA 2890, 2890.2, 2890.A2, 2892, 2892.2, 2892.A2, 2892A2, 2893.1, 2893.2, 2894, 2895.1, 2895.2\u003c\/li\u003e\n\u003cli\u003eSellita SW300\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManufacturer: \u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: GR\u003cspan\u003e25341X\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eType: Automatic with \u003cmeta charset=\"utf-8\"\u003ebridle\/slip end\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eHeight: 1.05mm\u003cbr\u003eThickness: 0.115mm\u003cbr\u003eLength: 430mm\u003cbr\u003eBarrel Diameter: 10.5mm\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs.\u003c\/p\u003e","brand":"GR","offers":[{"title":"Single","offer_id":49363201032382,"sku":"GR25341X-1","price":18.0,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49363201065150,"sku":"GR25341X-2","price":51.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR25341X_B_mod.jpg?v=1787763581"},{"product_id":"omega-565-552-562-561-mainspring","title":"Omega 565, 552, 562, 561 Mainspring","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts high-quality Swiss-made mainspring (GR2535X), compatible with Omega 550, 551, 552, 560, 561, 562, 563, 564, 565.\u003c\/p\u003e\n\u003cp\u003eIf you're servicing a classic Omega 565 or other 5xx movement, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? While it might be difficult to find Omega OEM mainsprings, you can use Generale Ressorts of Switzerland, the leading maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eOmega 550, 551, 552, 560, 561, 562, 563, 564, 565\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: Generale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: 2535X\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eHeight: 1.05mm\u003cbr\u003eThickness: 0.12mm\u003cbr\u003eLength: 340mm\u003cbr\u003eBarrel Diameter: 10mm\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533715646,"sku":"GR2535X","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR2535X_B_mod.jpg?v=1787763523"},{"product_id":"omega-600-601-613-mainspring","title":"Omega 600, 601, 613 Mainspring","description":"\u003cp\u003eGenerale Ressorts high-quality Swiss-made mainspring (GR25351), compatible with Omega 600, 601, and 613.\u003c\/p\u003e\n\u003cp\u003eIf you're servicing an Omega 600, 601 or 613 movement, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? While it might be difficult to find Omega OEM mainsprings, you can use Generale Ressorts of Switzerland, the leading maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eOmega 600, 601, and 613\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: Generale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: GR25351\u003c\/p\u003e\n\u003cp\u003eType: Manual Wind\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eHeight: 1.05mm\u003cbr\u003eThickness: 0.12mm\u003cbr\u003eLength: 360mm\u003cbr\u003eBarrel Diameter: 9.5mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GR","offers":[{"title":"Single","offer_id":49363191333054,"sku":"GR25351-1","price":18.0,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49363191365822,"sku":"GR25351-2","price":51.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR25351_back_mod.jpg?v=1787763481"},{"product_id":"eta-valjoux-7750-7751-7753-7754-mainspring","title":"ETA Valjoux 7750 Mainspring (Fits 7751, 7753, 7754, SW500)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts high-quality Swiss-made mainspring (GR7750771). Compatible with ETA (Valjoux) 7750, 7751, 7753, 7754, and Sellita SW500 movements.\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eIf you're servicing a classic Valjoux 7750 (or other 775x) movement, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? Generale Ressorts, of Switzerland, is the highest-quality maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eETA 7750, 7751, 7753, 7754, and Sellita SW500\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: 7750771\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHeight: 1.50mm\u003cbr\u003eThickness: 0.113mm\u003cbr\u003eLength: 600mm\u003cbr\u003eBarrel Diameter: 12mm\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533781182,"sku":"7750771","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/7750771_F.jpg?v=1787763439"},{"product_id":"eta-2824-2821-mainspring","title":"ETA 2824 Mainspring (Fits 2821, 2824-2, SW200)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eGenuine Generale Ressorts high-quality Swiss-made mainspring compatible with ETA 2821, 2824, 2827, 2830, 2832, 2833, 2834, 2836, 2839. \u003c\/p\u003e\n\u003cp\u003eIf you're servicing a classic Swiss \"workhorse\" automatic movement like the 2824 or 2821 you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? Generale Ressorts, of Switzerland, is the highest-quality maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: ETA 2821, 2824, 2827, 2830, 2832, 2833, 2834, 2836, 2839, Sellita SW200\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: \u003cmeta charset=\"utf-8\"\u003eG57162\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eHeight: 1.23mm\u003cbr\u003eThickness: 0.134mm\u003cbr\u003eLength: 400mm\u003cbr\u003eBarrel Diameter: 10.5mm\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533813950,"sku":"GR3149X","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/G57162_B_mod.jpg?v=1787763413"},{"product_id":"eta-2670-2671-2678-mainspring","title":"ETA 2671 Mainspring (Fits 2670, 2678, 2681)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts high-quality Swiss-made mainspring (GR3197X), compatible with ETA 2670, 2671, 2678, 2681, and Tissot 2381.\u003c\/p\u003e\n\u003cp\u003eThe ETA 2671 and similar movements were the Swiss \"workhorses\" used in classic Swiss ladies automatic watches. If you're servicing a 2671 (or similar) movement, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? Generale Ressorts, of Switzerland, is the highest-quality maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: ETA 2670, 2671, 2678, 2681, \u003cmeta charset=\"utf-8\"\u003eTissot 2381\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: 3197X\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eHeight: 1.30mm\u003cbr\u003eThickness: 0.075mm\u003cbr\u003eLength: 300mm\u003cbr\u003eBarrel Diameter: 7mm\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533846718,"sku":"GR3197X","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR3197X_F.jpg?v=1787763383"},{"product_id":"eta-unitas-6497-6498-mainspring","title":"ETA Unitas 6497 \u0026 6498 Mainspring","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts high-quality Swiss-made mainspring (GR43071). Compatible with ETA 6497, 6498, and related Unitas calibers.\u003c\/p\u003e\n\u003cp\u003eIf you're servicing a classic Unitas 6497 or 6498 movement, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? Generale Ressorts is the leading aftermarket manufacturer of quality mainsprings.\u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: ETA 6497.1, 6497.2, 6498.1, and 6498.2 and related Unitas calibers\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: Generale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: 43071\u003c\/p\u003e\n\u003cp\u003eType: Manual Wind\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eHeight: 1.50mm\u003cbr\u003eThickness: 0.175mm\u003cbr\u003eLength: 440mm\u003cbr\u003eBarrel Diameter: 14.5mm\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533879486,"sku":"GR43071","price":27.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR43071_F.jpg?v=1787763355"},{"product_id":"rolex-1570-1520-1530-1560-mainspring","title":"Rolex 1570 Mainspring (Fits 1520, 1530, 1555, 1560)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eGenerale Ressorts high-quality Swiss-made mainspring (GR1530771). Compatible with Rolex 1520, 1530, 1555, 1556, 1560, and 1570.\u003c\/p\u003e\n\u003cp\u003eIf you're servicing a Rolex 15xx movement, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? While it might be difficult to find Rolex OEM mainsprings, you can use Generale Ressorts of Switzerland, the leading maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eRolex 1520, 1530, 1555, 1556, 1560, and 1570\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: Generale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: 1530771\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eHeight: 1.30mm\u003cbr\u003eThickness: 0.12mm\u003cbr\u003eLength: 460mm\u003cbr\u003eBarrel Diameter: 11mm\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575533977790,"sku":"1530771","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/1530771_B_mod.jpg?v=1787763228"},{"product_id":"rolex-3030-3035-3055-mainspring","title":"Rolex 3035 Mainspring (Fits 3030, 3055, 3075, 3085)","description":"\u003cp\u003eGenuine Generale Ressorts high-quality Swiss-made mainspring \u003cmeta charset=\"utf-8\"\u003ecompatible with \u003cmeta charset=\"utf-8\"\u003eRolex 3030, 3035, 3055, 3075, and 3085.\u003c\/p\u003e\n\u003cp\u003eIf you're servicing a Rolex 30xx movement, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? While it might be difficult to find Rolex OEM mainsprings, you can use Generale Ressorts of Switzerland, the leading maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eRolex 3030, 3035, 3055, 3075, and 3085\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: Generale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e3035771\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eHeight: 1.40mm\u003cbr\u003eThickness: 0.106mm\u003cbr\u003eLength: 530mm\u003cbr\u003eBarrel Diameter: 11.2mm\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47575534010558,"sku":"3035771","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/3035771_B_mod.jpg?v=1788815467"},{"product_id":"rolex-3130-3135-3155-mainspring","title":"Rolex 3135 Mainspring (Fits 3130, 3155, 3185, 3186)","description":"\u003cp\u003eGenuine Generale Ressorts high-quality Swiss-made mainspring compatible with Rolex 3130, 3135, 3155, 3175, 3185, and 3186.\u003c\/p\u003e\n\u003cp\u003eIf you're servicing a Rolex 3130, 3125 or related movements, you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? While it might be difficult to find Rolex OEM mainsprings, you can use Generale Ressorts of Switzerland, the leading maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eRolex 3130, 3135, 3155, 3175, 3185, and 3186\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: Generale Ressorts\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e3135771\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eType: Automatic\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eHeight: 1.18mm\u003cbr\u003eThickness: 0.112mm\u003cbr\u003eLength: 455mm\u003cbr\u003eBarrel Diameter: 11.2mm\u003cbr\u003e\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47576031592638,"sku":"3135771","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/3135771_B_mod.jpg?v=1787763157"},{"product_id":"eta-7001-peseux-7001-mainspring","title":"ETA Peseux 7001 Mainspring (also fits 7004, 7011, 7014 )","description":"\u003cp\u003eGenuine Generale Ressorts high-quality Swiss-made mainspring compatible with ETA 7001, Peseux 7001, 7004, 7011, 7014.\u003c\/p\u003e\n\u003cp\u003eIf you're servicing an ultra-slim Swiss movement like the ETA (Peseux) 7001 (or related 70xx movements), you want to use a high-quality mainspring from a reputable manufacturer. Why take chances with a no-name mainspring that might cause fitment issues with the arbor or barrel, or which might not provide a strong amplitude? Generale Ressorts, of Switzerland, is the highest-quality maker of aftermarket mainsprings. \u003c\/p\u003e\n\u003cp\u003eAmplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. \u003c\/p\u003e\n\u003cp\u003eCompatible With: \u003cmeta charset=\"utf-8\"\u003eETA 7001, Peseux 7001, 7004, 7011, 7014, and Longines 396.2\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: \u003cmeta charset=\"utf-8\"\u003eGR2467\u003c\/p\u003e\n\u003cp\u003eType: Manual-wind\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003eHeight: 1.00mm\u003cbr\u003eThickness: 0.12mm\u003cbr\u003eLength: 300mm\u003cbr\u003eBarrel Diameter: 9.5mm\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":47576182128830,"sku":"GR2467","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR2467_B_mod.jpg?v=1787763104"},{"product_id":"seiko-6217-6245-6246","title":"Seiko 6217, 6245, 6246 Mainspring","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for Seiko 6201B, 6205B, 6206A, 6206B, 6216A, 6217A, 6218A, 6245A and 6246A automatic movements. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThese vintage Seiko movements include some of the company’s most collectible watches. The 6217A powered Seiko’s famous 62MAS, the company’s first professional dive watch, while the 6245A and 6246A were used in the highly regarded 62GS Grand Seiko. The 6200-series movements were also used across a variety of other Seiko automatic watches from the 1960s.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re servicing one of these vintage Seiko movements, a high-quality replacement mainspring is important for proper fit and performance. A poorly made mainspring can cause fitment problems with the arbor or barrel and may not deliver the amplitude expected from a properly serviced movement. Here, there’s no mystery about what you’re installing: a branded mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eIs GR2533X compatible with the Seiko 6217A?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR2533X is a replacement mainspring for the Seiko 6217A used in the vintage 62MAS, as well as a number of related Seiko 6200-series movements and the 6245A and 6246A Grand Seiko movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eCompatible Seiko Movements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e6201B\u003cbr\u003e6205B\u003cbr\u003e6206A\u003cbr\u003e6206B\u003cbr\u003e6216A\u003cbr\u003e6217A\u003cbr\u003e6218A\u003cbr\u003e6245A\u003cbr\u003e6246A\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR2533X\u003cbr\u003eType: Automatic mainspring\u003cbr\u003eHeight: 1.05 mm\u003cbr\u003eThickness: 0.11 mm\u003cbr\u003eLength: 360 mm\u003cbr\u003eBarrel Diameter: 10 mm\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long shipping delays or tariffs. \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49180596895934,"sku":null,"price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/IMG_6059.heic?v=1790639968"},{"product_id":"seiko-5740-mainspring","title":"Seiko 5740 (5740A, 5740B, 5740C) Mainspring","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for Seiko 5740A, 5740B, 5740C and related manual-wind movements. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Seiko 5740 family includes some of Seiko’s most interesting vintage manual-wind watches. The 5740C is particularly notable as the movement used in the Lord Marvel 36000, one of Seiko’s early high-beat watches running at 36,000 vibrations per hour. Lord Marvels are increasingly collectible.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re servicing a vintage Seiko 5740 movement, a high-quality replacement mainspring is important for proper fit and performance. A poorly made mainspring can cause fitment problems with the arbor or barrel and may not deliver the amplitude expected from a properly serviced movement. Here, there’s no mystery about what you’re installing: a branded mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eIs GR4007D compatible with the Seiko Lord Marvel 36000?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes, GR4007D is a replacement mainspring for the Seiko 5740 family, including the 5740C used in the Lord Marvel 36000. Because vintage Seiko movements may have undergone previous repairs or parts substitutions, compare the existing mainspring and barrel configuration before installation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eCompatible Seiko Movements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e5722A\u003cbr\u003e5722B\u003cbr\u003e5740A\u003cbr\u003e5740B\u003cbr\u003e5740C\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR4007D\u003cbr\u003eType: Manual-wind mainspring, D-end\u003cbr\u003eHeight: 1.45 mm\u003cbr\u003eThickness: 0.125 mm\u003cbr\u003eLength: 440 mm\u003cbr\u003eBarrel Diameter: 10.5 mm\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long shipping delays or tariffs. \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49180679864510,"sku":null,"price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/IMG_6060.heic?v=1790640929"},{"product_id":"omega-260-261-262-mainspring","title":"Omega 260, 261, 262 Mainspring","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for Omega 260, 261, 262, 281 and 282 manual-wind movements. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Omega 260-series and related 281 and 282 calibers belong to Omega’s celebrated family of 30 mm manual-wind movements. These robust movements were used in a wide variety of desirable vintage Omega watches and remain popular with collectors, hobbyists and professional watchmakers today.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re servicing a vintage Omega 260, 261, 262, 281 or 282 movement, a high-quality replacement mainspring is important for proper fit and performance. A poorly made mainspring can cause fitment problems with the arbor or barrel and may not deliver the amplitude expected from a properly serviced movement. Here, there’s no mystery about what you’re installing: a branded mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eIs GR4227 compatible with the Omega 260 and 261?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR4227 is a replacement mainspring for the Omega 260, as well as the related Omega 261, 262, 281 and 282 manual-wind movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eCompatible Omega Movements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e260\u003cbr\u003e261\u003cbr\u003e262\u003cbr\u003e281\u003cbr\u003e282\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR4227\u003cbr\u003eType: Manual-wind mainspring\u003cbr\u003eHeight: 1.50 mm\u003cbr\u003eThickness: 0.14 mm\u003cbr\u003eLength: 320 mm\u003cbr\u003eBarrel Diameter: 11.5 mm\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long shipping delays or tariffs. \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49180738977982,"sku":null,"price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/IMG_6063.heic?v=1790641780"},{"product_id":"omega-265-267-284-mainspring","title":"Omega 265, 267, 284 Mainspring","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for Omega 265, 267 and 284 manual-wind movements. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Omega 265, 267 and 284 belong to Omega’s famous family of 30 mm manual-wind movements. These movements were produced during one of the most important periods in Omega’s history and can be found in a wide range of collectible vintage watches. Their robust construction and excellent serviceability have helped many survive for decades, making them popular movements for both professional watchmakers and hobbyists today.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re servicing a vintage Omega 265, 267 or 284 movement, a high-quality replacement mainspring is important for proper fit and performance. A poorly made mainspring can cause fitment problems with the arbor or barrel and may not deliver the amplitude expected from a properly serviced movement. Here, there’s no mystery about what you’re installing: a branded mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eIs GR4198 compatible with the Omega 265?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR4198 is a replacement mainspring for the Omega 265, as well as the Omega 267 and 284 manual-wind movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eCompatible Omega Movements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e265\u003cbr\u003e267\u003cbr\u003e284\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR4198\u003cbr\u003eType: Manual-wind mainspring\u003cbr\u003eHeight: 1.50 mm\u003cbr\u003eThickness: 0.13 mm\u003cbr\u003eLength: 360 mm\u003cbr\u003eBarrel Diameter: 11 mm\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long shipping delays or tariffs. \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49180754280638,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/IMG_6065.heic?v=1790642351"},{"product_id":"omega-268-269-285-mainspring","title":"Omega 268, 269, 285 Mainspring","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for Omega 268, 269 and 285 manual-wind movements. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Omega 268, 269 and 285 belong to Omega’s celebrated family of 30 mm manual-wind movements. These calibers were used in a wide range of desirable vintage Omega watches and are known for their robust construction, straightforward serviceability and excellent longevity. Today, they remain popular movements for restoration and servicing by both professional watchmakers and hobbyists.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re servicing a vintage Omega 268, 269 or 285 movement, a high-quality replacement mainspring is important for proper fit and performance. A poorly made mainspring can cause fitment problems with the arbor or barrel and may not deliver the amplitude expected from a properly serviced movement. Here, there’s no mystery about what you’re installing: a branded mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eIs GR4186 compatible with the Omega 268?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR4186 is a replacement mainspring for the Omega 268, as well as the Omega 269 and 285 manual-wind movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eCompatible Omega Movements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e268\u003cbr\u003e269\u003cbr\u003e285\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR4186\u003cbr\u003eType: Manual-wind mainspring\u003cbr\u003eHeight: 1.50 mm\u003cbr\u003eThickness: 0.125 mm\u003cbr\u003eLength: 360 mm\u003cbr\u003eBarrel Diameter: 11 mm\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long shipping delays or tariffs. \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49180770697406,"sku":null,"price":31.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/IMG_6067.heic?v=1790642861"},{"product_id":"hamilton-992b-mainspring","title":"Hamilton 992B 16S Mainspring (Double Brace)","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for Hamilton 992B and related 16-size pocket watch movements using the DB (Double Brace) mainspring configuration. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Hamilton 992B is one of the best-known American railroad-grade pocket watch movements. Produced in large numbers over several decades, the 21-jewel 992B was built to meet demanding railroad timekeeping standards and remains extremely popular with collectors, hobbyists and professional watchmakers today. Its quality, historical importance and large surviving population make the 992B a movement well worth maintaining and servicing.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003eIf you’re servicing a Hamilton 992B movement, you might find that some dusty old Hamilton NOS mainsprings or similar aftermarket springs from that time period are available. But if you're going to take the trouble to service a great vintage Hamilton watch it's best to use a modern, quality mainspring like this product by Generale Ressorts of Switzerland.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eIs GR7165DB compatible with the Hamilton 992B?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR7165DB is a replacement mainspring for the Hamilton 992B using the DB (Double Brace) mainspring and barrel configuration. The DB outer end has two braces designed to engage the appropriate barrel configuration.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eImportant: Vintage pocket watch movements may be encountered with different replacement barrels or mainspring configurations after decades of previous servicing. Compare the existing mainspring, dimensions and barrel attachment before ordering.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eCompatible Hamilton Movements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e992B\u003cbr\u003e16S\u003cbr\u003e604\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR7165DB\u003cbr\u003eType: Manual-wind mainspring, DB (Double Brace) end\u003cbr\u003eHeight: 3.00 mm\u003cbr\u003eThickness: 0.165 mm\u003cbr\u003eLength: 740 mm\u003cbr\u003eBarrel Diameter: 16.5 mm\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long shipping delays or tariffs. \u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49180894691518,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/IMG_6073.heic?v=1790644822"},{"product_id":"seiko-bellmatic-4006-4006a-mainspring","title":"Seiko Bellmatic 4006 Mainspring (also fits 4006A, 4005, 8306A)","description":"\u003cp class=\"p1\"\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for the Seiko 4006 Bell-Matic and related vintage Seiko automatic movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Seiko 4006 is best known as the movement behind the mechanical Bell-Matic alarm watch. Introduced during one of Seiko’s most innovative periods, Bell-Matics remain distinctive and collectible vintage watches with an active enthusiast following.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhen servicing a vintage Seiko movement, mainspring quality and dimensional consistency matter. There’s no mystery about what you’re installing: GR2378X is a branded Swiss mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eIs GR2378X compatible with the Seiko 4006 Bell-Matic?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR2378X is listed as a replacement automatic mainspring for Seiko\/Hattori 4005, 4005A, 4006, 4006A and several related vintage Seiko calibers. Because vintage movements may have undergone previous repairs or parts substitutions, compare the existing mainspring and barrel configuration before installation.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Seiko Movements\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e4005\u003cbr\u003e4005A\u003cbr\u003e4006\u003cbr\u003e4006A\u003cbr\u003e830\u003cbr\u003e8305B\u003cbr\u003e8305C\u003cbr\u003e8306A\u003cbr\u003e8325A\u003cbr\u003e840\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR2378X\u003cbr\u003eType: Automatic mainspring\u003cbr\u003eHeight: 0.95 mm\u003cbr\u003eThickness: 0.12 mm\u003cbr\u003eLength: 400 mm\u003cbr\u003eBarrel Diameter: 10.5 mm\u003c\/p\u003e\n\u003cp class=\"p4\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long overseas shipping delays or tariffs.\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49540346216638,"sku":null,"price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR_image_e2eac832-c6a5-4c52-8481-005f3ec19dac.jpg?v=1779626887"},{"product_id":"seiko-5106a-5126a-5139a-mainspring","title":"Seiko 5106A, 5126A, 5139A mainspring","description":"\u003cp class=\"p1\"\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for vintage Seiko 5106A, 5126A and 5139A automatic movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThese calibers belong to Seiko’s vintage 51-series automatic family and can be found in collectible Seiko watches from an important period in the company’s mechanical-watch history.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhen servicing a vintage Seiko movement, mainspring quality and dimensional consistency matter. There’s no mystery about what you’re installing: GR2379X is a branded Swiss mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eIs GR2379X compatible with the Seiko 5106A, 5126A and 5139A?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR2379X is listed as a replacement automatic mainspring for Seiko\/Hattori calibers 5106A, 5126A and 5139A. Because vintage movements may have undergone previous repairs or parts substitutions, compare the existing mainspring and barrel configuration before installation.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Seiko Movements\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e5106A\u003cbr\u003e5126A\u003cbr\u003e5139A\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR2379X\u003cbr\u003eType: Automatic mainspring\u003cbr\u003eHeight: 0.95 mm\u003cbr\u003eThickness: 0.125 mm\u003cbr\u003eLength: 380 mm\u003cbr\u003eBarrel Diameter: 10.5 mm\u003c\/p\u003e\n\u003cp class=\"p4\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long overseas shipping delays or tariffs.\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49540356505790,"sku":null,"price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR_image_067d5926-4415-484c-a27a-86803d724893.jpg?v=1779626901"},{"product_id":"longines-19a-19ad-mainspring","title":"Longines 19A, 19AD mainspring","description":"\u003cp class=\"p1\"\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for vintage Longines 19A and 19AD automatic movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Longines 19A family dates from an important period in the development of automatic wristwatches and can still be found in collectible vintage Longines watches today.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhen servicing a vintage Longines movement, mainspring quality and dimensional consistency matter. There’s no mystery about what you’re installing: GR3196X is a branded Swiss mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eIs GR3196X compatible with the Longines 19A and 19AD?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR3196X is listed as a replacement automatic mainspring for Longines calibers 19A and 19AD. Because vintage movements may have undergone previous repairs or parts substitutions, compare the existing mainspring and barrel configuration before installation.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Longines Movements\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e19A\u003cbr\u003e19AD\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR3196X\u003cbr\u003eType: Automatic mainspring\u003cbr\u003eHeight: 1.30 mm\u003cbr\u003eThickness: 0.075 mm\u003cbr\u003eLength: 280 mm\u003cbr\u003eBarrel Diameter: 8 mm\u003c\/p\u003e\n\u003cp class=\"p4\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long overseas shipping delays or tariffs.\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49540402151614,"sku":null,"price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR_image_e2eac832-c6a5-4c52-8481-005f3ec19dac.jpg?v=1779626887"},{"product_id":"omega-816-1861-speedmaster-mainspring","title":"Omega 816, 1861 Speedmaster Mainspring","description":"\u003cp class=\"p1\"\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for the Omega 861, 1861 and related manual-wind Speedmaster movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe 861 and later 1861 families powered generations of Omega Speedmaster Professional watches and are among Omega’s most important manual-wind chronograph movements. These are highly collectible watches that continue to be regularly serviced and restored.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eFor a movement like the Omega 861 or 1861, mainspring quality and dimensional consistency matter. There’s no mystery about what you’re installing: GR33001 is a branded Swiss mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eIs GR33001 compatible with the Omega 861 and 1861?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR33001 is a replacement mainspring for a broad family of Omega manual-wind chronograph movements spanning the 861 and 1861 generations.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Omega Movements\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e860\u003cbr\u003e861\u003cbr\u003e863\u003cbr\u003e865\u003cbr\u003e866\u003cbr\u003e920\u003cbr\u003e930\u003cbr\u003e1861\u003cbr\u003e1861A\u003cbr\u003e1863\u003cbr\u003e1866\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR33001\u003cbr\u003eType: Manual-wind mainspring\u003cbr\u003eHeight: 1.30 mm\u003cbr\u003eThickness: 0.115 mm\u003cbr\u003eLength: 420 mm\u003cbr\u003eBarrel Diameter: 10.5 mm\u003c\/p\u003e\n\u003cp class=\"p4\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long overseas shipping delays or tariffs.\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49540426956990,"sku":null,"price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR_image_784d4a07-94f1-4f46-a2ce-c27c72f91703.jpg?v=1779626759"},{"product_id":"omega-1020-1010-1011-1012-mainspring","title":"Omega 1020, 1010, 1011, 1012 Mainspring","description":"\u003cp class=\"p1\"\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for Omega 1010, 1011, 1012, 1020, 1021 and 1022 automatic movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eOmega’s 10xx family powered an important generation of automatic watches during the 1970s and early 1980s. \u003cmeta charset=\"utf-8\"\u003eThese movement families sold over 1.1 million units during their lifetimes, according to the Omega Museum. These movements remain common in collectible vintage Omegas and are well worth servicing today. \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhen servicing a vintage Omega, mainspring quality and dimensional consistency matter. There’s no mystery about what you’re installing: GR23781X is a branded Swiss mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eIs GR23781X compatible with the Omega 1020 and 1012?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR23781X is a replacement automatic mainspring for the Omega 1010\/1020 family, including calibers 1010, 1011, 1012, 1020, 1021 and 1022. As with any vintage movement, compare the existing mainspring and barrel configuration before installation.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Omega Movements\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e1010\u003cbr\u003e1011\u003cbr\u003e1012\u003cbr\u003e1020\u003cbr\u003e1021\u003cbr\u003e1022\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR23781X\u003cbr\u003eType: Automatic mainspring\u003cbr\u003eHeight: 0.95 mm\u003cbr\u003eThickness: 0.12 mm\u003cbr\u003eLength: 500 mm\u003cbr\u003eBarrel Diameter: 11.75 mm\u003c\/p\u003e\n\u003cp class=\"p4\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long overseas shipping delays or tariffs.\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49540490756286,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR_image_784d4a07-94f1-4f46-a2ce-c27c72f91703.jpg?v=1779626759"},{"product_id":"rolex-1210-1215-mainspring","title":"Rolex 1210, 1215 Mainspring","description":"\u003cp class=\"p1\"\u003eGenuine Generale Ressorts Swiss-made replacement mainspring for vintage Rolex 1210 and 1215 manual-wind movements.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Rolex 12xx family represents an earlier generation of Rolex manual-wind movements found in collectible vintage watches. For watches of this age, finding a correctly sized, high-quality replacement mainspring can be increasingly difficult.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhen servicing a vintage Rolex movement, mainspring quality and dimensional consistency matter. There’s no mystery about what you’re installing: GR4113 is a branded Swiss mainspring made by Generale Ressorts, a leading specialist manufacturer of watch mainsprings.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eIs GR4113 compatible with Rolex 1210 and 1215?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYes. GR4113 is listed as a replacement mainspring for Rolex calibers 1210 and 1215. Because vintage movements may have undergone previous repairs or parts substitutions, compare the existing mainspring and barrel configuration before installation.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Rolex Movements\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e1210\u003cbr\u003e1215\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufacturer: Generale Ressorts\u003cbr\u003eManufacturer Part Number: GR4113\u003cbr\u003eType: Manual-wind mainspring\u003cbr\u003eHeight: 1.50 mm\u003cbr\u003eThickness: 0.095 mm\u003cbr\u003eLength: 320 mm\u003cbr\u003eBarrel Diameter: 9.0 mm\u003c\/p\u003e\n\u003cp class=\"p4\"\u003eAmplitude Watch Parts ships from the USA, so there’s no need to worry about long overseas shipping delays or tariffs.\u003c\/p\u003e","brand":"GR","offers":[{"title":"Default Title","offer_id":49540519002302,"sku":null,"price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/files\/GR_image_784d4a07-94f1-4f46-a2ce-c27c72f91703.jpg?v=1779626759"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/6048\/9918\/collections\/GR_image_eaabc664-2909-45ca-9683-e6a3990b09d5.jpg?v=1787763894","url":"https:\/\/amplitudeparts.com\/collections\/generale-ressorts-mainsprings.oembed?page=2","provider":"Amplitude Watch Parts","version":"1.0","type":"link"}