Tudor Black Bay One 39

The Tudor Black Bay One 39, reference M79660-0006, has a 39 mm steel case. The case is 12 mm thick, with a lug width of 21 mm. The case has a polished and satin finish, and the bezel is steel. The movement is the self-winding calibre MT5602, which is chronometer certified and has a power reserve of approximately 70 hours. A flat sapphire crystal covers the champagne dial, which is set with diamonds. The screw-down crown carries the Tudor rose in relief. Tudor rates the case to 100 metres. A steel bracelet is fitted to the watch, with a steel folding clasp and a safety catch.