Seiko 6309, 6119, 6105 Mainspring

Genuine Generale Ressorts high-quality Swiss-made mainspring, compatible with Seiko 6105, 6106, 6117, 6118, 6119, 6309, 6319.

The 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. 

Amplitude Watch Parts ships from the USA, so there's no need to worry about long shipping delays or tariffs. 

Compatible With: Seiko 6105, 6106, 6117, 6118, 6119, 6309, 6319

Manufacturer: Generale Ressorts

Manufacturer Part Number: GR2534X

Replacement for: Seiko 401.615 (401615)

Type: Automatic

Height: 1.05mm
Thickness: 0.115mm
Length: 420mm
Barrel Diameter: 10.5mm

Compatibility 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