Seiko Prospex Marinemaster 1965 Heritage Diver Watch

Prospex Marinemaster 1965 Heritage Diver's Watch. Combining functionality with aesthetics, this timepiece is part of the first globally launched "Marinemaster" series. It features Seiko's first see-through screwdown caseback on a diver’s watch, a chamfered case and bezel, and a double-curved bracelet for comfort. Based on Seiko’s first Japanese diver’s watch from 1965, it uses modern technology and materials. The 26-jewel Caliber 6L37 automatic movement, visible through the caseback, offers a 45-hour power reserve and manual winding capability. The blue patterned dial, framed by a uni-directional rotating bezel, features LumiBrite hands and markers. Crafted from stainless steel with a super-hard coating, it includes a box-shaped sapphire crystal, screwdown crown, and tri-fold push-button clasp. Packaged in a special collector’s box. 200M Water Resistant. Reference SJE099