SEIKO Prospex U.S. Special Edition SRPH57

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 turquoise 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

Additional green silicone strap

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

Caliber 4R36