Seiko SRPD55 41mm Auto Mint Black Watch Runs

Updated September 15, 2026

Vintage Seiko 5 Sports mechanical automatic day-date diver-style sports wristwatch presented in exceptionally clean mint condition. The 41.63mm solid stainless steel case features an exhibition mineral crystal display caseback, an offset push-pull winding crown at 4 o'clock, and a factory unidirectional rotating black timing bezel ring. The clear display caseback details authentic factory stamps reading "SEIKO", "WATER RESISTANT 10 BAR", "STAINLESS STEEL", and movement caliber marker "4R36-07G0 [A0]". The high-contrast black factory dial showcases bold luminescent round hour indices, an arrow-tipped minutes hand, a sweep seconds hand with a circular counterweight, an integrated bilingual day-date window register display at 3 o'clock, and lower text paths reading "MOV'T JAPAN 4R36-07E8 R 2". The watch is powered by a high-grade, factory-signed 24-jewel caliber 4R36 automatic self-winding movement featuring hacking seconds and manual-winding capabilities, paired with its original stainless steel three-row link bracelet secured by a signed fold-over deployment clasp with a safety lock mechanism.This mechanical watch is running as of the time of listing, though a professional service is required for accurate timekeeping, and extended runtime without service is not guaranteed.

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