A modern classic from Seiko’s legendary 5 Sports SKX series, the Seiko SRPE51 refines the iconic dive-inspired look into a sleek, everyday automatic watch. With its clean silver dial, polished case, and compact proportions, it bridges versatility and timeless design.
Powered by Seiko’s Caliber 4R36 automatic movement, it delivers a 41-hour power reserve, hacking seconds, and manual winding capability. The stainless-steel case and bracelet are paired with a Hardlex crystal, LumiBrite-coated hands and markers, and a see-through screw case back that reveals the reliable movement within. Built with Seiko’s trademark durability, the SRPE51 is perfectly suited for both casual wear and daily adventure.
Specs at a glance:
Movement: Seiko 4R36 automatic, 24 jewels
Power reserve: ~41 hours
Case size: 40.0 mm diameter × 11.5 mm thick
Lug-to-lug: 44.6 mm
Case material: Stainless steel
Crystal: Hardlex glass
Bracelet: Stainless steel with three-fold clasp and secure lock
Lug width: 20 mm
Water resistance: 10 bar (100 m)
Weight: 142 g
Features: Day/date display, stop-seconds, see-through screw case back, LumiBrite hands & indices
Magnetic resistance: 4,800 A/m
A refined interpretation of Seiko’s SKX heritage — the SRPE51 combines classic dive styling, robust construction, and mechanical precision in a perfectly balanced everyday timepiece.
