Seiko 5 Sports x Automatic ft. SKX Series Men Formal Round 100m Water Resistant Watch SRPL77K1 SRPL77 SRPL-77 SRPL-77K1 Discover the Seiko 5 Sports SKX Automatic Watch - a perfect blend of rugged durability and refined style. Features a stainless steel case and bracelet, 4R36 automatic movement with 41-hour power reserve, and 100m water resistance. Equipped with hardlex crystal, LumiBrite markings, day-date display, and hacking seconds. Ideal for everyday wear with its 38mm case and unidirectional bezel. 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 stainless steel band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 12.1 mm Diameter: 38.0 mm Length: 44.2 mm Lug width: 20.0 mm Other Specifications Seiko 5 Sports x Automatic ft. SKX Series Magnetic resistance (4,800 A/m) 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)