Seiko 5 Sports x Automatic ft. SKX Series aka Camouflage Men Casual Round 100m Water Resistant Watch SRPJ37K1 SRPJ37 SRPJ-37 SRPJ-37K1 Discover the Seiko 5 Sports SRPJ37 with a military green camouflage dial and black hard-coated 42.5mm stainless steel case. Features the 4R36 automatic movement with 41-hour power reserve, day-date display, and 100m water resistance. Includes LumiBrite illumination and comes on a black nato-style textile strap. Caliber Number / Movement 4R36 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Hardlex crystal Luminous LumiBrite on hands and indexes Case / Band Material Stainless steel case with fabric (nylon) band Water Resistance 100m / 10 bar Case Size Thickness: 13.4 mm Diameter: 42.5 mm Length: 46.0 mm Lug width: 22.0 mm Other Specifications Seiko 5 Sports x Automatic ft. SKX Series aka Camouflage Unidirectional rotating bezel See-through back case Screw case back 24 jewels Day and date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)