Seiko / Seikosha Ersatzteil – Stellhebelfeder (Schlüsselwerk‑Feder) für Seiko „Solar" (Kal. 5S) (1 Stück) – NOS Taucheruhr This caliber family was specifically

This caliber family was specifically developed for continuous everyday use and foregoes excessive ornamentation in favor of stability and precision

With a total height of only about 3 mm (movement)

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Every fabric cut and pattern is absolutely unique

Seiko / Seikosha Ersatzteil – Stellhebelfeder (Schlüsselwerk‑Feder) für Seiko „Solar" (Kal. 5S) (1 Stück) – NOS Taucheruhr This caliber family was specificallyOriginal Seikosha spare part Keyless works spring (presumably setting lever spring) from unused old stock (NOS) for the Seiko "Solar" (designated on the bag with caliber identification 5S: "5S ()"). One single piece is offered, taken from an original "SEIKO WATCH PARTS" bag (original packaging 1 dozen "1 DZ."); the packaging is stamped "GENUINE SEIKOSHA MAKE". The spring belongs to the keyless works: it holds or locks the setting parts (setting lever)