Seiko Prospex "Black Series" model SPB257. Limited edition of 5500 pieces. Japanese automatic 6R35 automatic movement. Stainless steel case with black PVD coating. PVD coated uni-directional bezel with a hint of orange accents. Black dial with aged color LumiBrite painted hands and markers. Comes in a set with both a brown NATO style nylon and black silicone rubber strap. Sapphire crystal. Diver rated to 200meters water resistant.
Movement:
SEIKO Mechanical Automatic ( Powered by wrist movement ). Caliber 6R35, 24 jewels.
Movement Features:
Approx. 70 hours power reserve.
Functions:
Date calendar, window display.
Bezel:
Uni-Directional rotating, ratcheted, 0-60 Elapsed-Time. Black PVD coated.
Crown:
Sport style, screw-down (threaded).
Crystal:
Curved sapphire. Anti-reflective coating on inner surface.
Dial:
Black color. Luminous ( radiation-free LumiBrite ) hour markers.
Hands:
Black varnished. LumiBrite radiation-free luminous filled.
Water Resistance:
200m/660ft/20atm.
Case Size:
41.50mm. 42.50mm. 13.00mm.
Warranty:
3 YEARS Manufacturer's Warranty.