Seiko Prospex x Automatic ft. 1965 Heritage aka 62MAS Reissue aka Save The Ocean (STO) (Limited Edition of 4,000 Pieces) Men Diver Round 300m Water Resistant Watch SPB545J1 SPB545 SPB-545 SPB-545J1 Capture the beauty of the ocean with the limited edition Seiko Prospex SPB545. This 1965 Heritage Diver watch features a stunning Tranquil Teal sunray dial inspired by Okinawa, a 6R55 automatic movement with 72-hour power reserve, and 300m water resistance. The stainless steel bracelet includes a new micro-adjust clasp for superior comfort. Limited to 4,000 pieces. Caliber Number / Movement 6R55 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 72 hours (+25 to -15 seconds per day) Crystal Sapphire crystal (curved, anti-reflective coating) Luminous LumiBrite on hands, indexes and bezel Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with secure lock, push-button release with slide extender) Water Resistance 300m / 1,000ft diver Case Size Thickness: 13.0 mm Diameter: 40.0 mm Length: 46.4 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. 1965 Heritage aka 62MAS Reissue aka Save The Ocean (STO) (Limited Edition of 4,000 Pieces) Made in Japan LIMITED EDITION on the case back Serial number engraved on the case back Magnetic resistance (4,800 A/m) Unidirectional rotating bezel Screw-down crown Screw case back 24 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)