Seiko Presage x Automatic ft. 1964 Crown Chronograph aka Style60s aka 60th Anniversary (Limited Edition of 5,000 Pieces) Men Formal Round 50m Water Resistant Watch SRPK61J1 SRPK61 SRPK-61 SRPK-61J1 Discover the Seiko Style60s SRPK61 Limited Edition, celebrating the 60th anniversary of Seiko first chronograph. This 39.5mm stainless steel watch features a vintage-inspired design with box hardlex crystal, date window, and authentic five-row bracelet. Powered by the 4R35 automatic movement with 41-hour power reserve. Caliber Number / Movement 4R35 (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 and indexes Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 50m / 5 bar Case Size Thickness: 12.0 mm Diameter: 39.5 mm Length: 46.2 mm Lug width: 20.0 mm Other Specifications Seiko Presage x Automatic ft. 1964 Crown Chronograph aka Style60s aka 60th Anniversary (Limited Edition of 5,000 Pieces) Made in Japan LIMITED EDITION on the case back Serial number engraved on the case back See-through case back Screw case back 23 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)