Sixty years of TUDOR diving history distilled into one truly iconic watch. The Black Bay has been updated for 2016 with a mechanical movement manufactured by TUDOR. 41 mm steel case with polished and satin finish. Self-winding mechanical movement with bidirectional rotor system. Power reserve of approximately 70 hours. Screw-down steel winding crown, with the TUDOR rose engraved and black-lacquered, with black anodised aluminium winding crown tube. Steel unidirectional rotatable bezel with disc in matt black anodised aluminium. Black dial with pink index, domed. Domed sapphire crystal. Aged black leather strap with folding buckle and safety clasp.