Seiko Prospex SRPH55

Seiko Prospex U.S. Special Edition — a automatic diver honoring ocean conservation with a striking turtle shell-inspired brown dial. Featuring a 45mm stainless steel case, ceramic bezel, sapphire crystal, and 200-meter water resistance certified for scuba diving. Day/date calendar, LumiBrite luminosity, and a screwdown caseback bearing a sea turtle motif. Powered by the reliable Caliber 4R36 with 41-hour power reserve.U.S. Special Edition

Celebrates Seiko Prospex's ongoing efforts to promote ocean exploration and conservation

Automatic diver with manual winding capability

21,600 vibrations per hour

Power reserve: approximately 41 hours

24 jewels

Black ceramic unidirectional rotating elapsed timing bezel

Intricately patterned brown dial inspired by the turtle shell

Day/date calendar with day in both English and Kanji

LumiBrite hands and markers

Sapphire crystal with anti-reflective coating on the inner surface

Screwdown crown

Screwdown Special Edition caseback with sea turtle image

Case diameter: 45.0mm

Stainless steel case and bracelet



Water-resistant to 200 meters (660 feet), Diver's Watch. Follows ISO standards and is suitable for scuba diving

Caliber 4R36

Packaging: supplied in standard Seiko packaging. This applies to all models, including Special and Limited Editions.