Tudor Black Bay 54

The Tudor Black Bay 54, reference M79000N-0001, is a dive watch with a 37 mm steel case. The case is 11.2 mm thick, and the lug width is 20 mm. Tudor rates the case to 200 metres. The movement is the self-winding Manufacture Calibre MT5400, a chronometer with a power reserve of approximately 70 hours. A domed sapphire crystal covers the black dial. The bezel is unidirectional and rotating, with an aluminium insert. The screw-down crown is steel and carries the Tudor rose in relief. A 3-link steel bracelet is fitted with a steel folding clasp.