Seiko / Seikosha Ersatzteil – Stellhebelfeder (Schlüsselwerk‑Feder) für Seiko „Solar" (Kal. 5S) (1 Stück) – NOS Taucheruhr “スターライトPW (Starlight PW)” refers to

“スターライトPW (Starlight PW)” refers to a round

The dark blue sunburst dial with silver-colored indices

Lug‑to‑lug 48

Lug width: 19 mm

Origin: Japan / JDM Model

Seiko / Seikosha Ersatzteil – Stellhebelfeder (Schlüsselwerk‑Feder) für Seiko „Solar" (Kal. 5S) (1 Stück) – NOS Taucheruhr “スターライトPW (Starlight PW)” refers toOriginal 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)