Seiko 5 Sports x Automatic ft. 55th Anniversary 1968 Re-Creation (Limited Edition of 15,555 Pieces) Men Formal Tonneau 100m Water Resistant Watch SRPK17K1 SRPK17 SRPK-17 SRPK-17K1 Discover the Seiko 5 Sports 55th Anniversary Limited Edition SRPK17, a faithful recreation of the iconic 1968 original. Features a 39.5mm tonneau case, matte black dial with LumiBrite, and caliber 4R36 automatic movement. Limited to 15,555 pieces with 100m water resistance and vintage-inspired bracelet. Caliber Number / Movement 4R36 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Hardlex crystal (curved) Luminous LumiBrite on hands, indexes and bezel 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: 12.5 mm Diameter: 39.5 mm Length: 43.1 mm Lug width: 20.0 mm Other Specifications Seiko 5 Sports x Automatic ft. 55th Anniversary 1968 Re-Creation (Limited Edition of 15,555 Pieces) LIMITED EDITION on the case back Serial number engraved on the case back Magnetic resistance (4,800 A/m) Unidirectional rotating bezel Screw case back 24 jewels Day and date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)