Tudor Black Bay One 39

Tudor's Black Bay One 39, reference M79660-0001, has a 39mm steel case with a polished and satin finish. The lug width measures 21mm, and a flat sapphire crystal sits over the anthracite dial. The dial carries luminous hands and indices for legibility in low light. Inside is the manufacture Calibre MT5602, a self-winding movement certified as a chronometer, with a power reserve of approximately 70 hours and a central seconds display. The screw-down crown bears the Tudor rose in relief. A steel bracelet with a T-fit folding clasp and safety catch completes the watch. Tudor rates the case waterproof to 100 metres.