Original Seiko Sperrklinkenfeder (1 Stück) – Part 382620 (コハゼバネ) u.a. für Grand Seiko GMT which sets new standards in

which sets new standards in its class with a power reserve of up to 72 hours

A red diver's icon with a robust stainless steel case

which is reflected in the high quality

Serial number: 0Dxxxx (Date of manufacture December 1970)

Original Seiko Sperrklinkenfeder (1 Stück) – Part 382620 (コハゼバネ) u.a. für Grand Seiko GMT which sets new standards inThis extremely rare original Seiko ratchet spring is an essential component for the restoration of early mechanical Seiko calibers. The spring securely holds the winding ratchet in position and prevents the mainspring barrel from rewinding a small part with a big function. The spare part bears the official Seiko part number 382620 and comes from historical factory stock (NOS New Old Stock). Compatible Seiko calibers and models This spring has been