Tudor Black Bay 58

The Tudor Black Bay 58, reference M7939A1A0NU-0002, is a dive watch with a 39 mm steel case. The case is 11.7 mm thick with a 20 mm lug width and polished and satin finishes. Tudor rates the case to 200 metres. A domed sapphire crystal covers the matt black dial, which has applied hour markers. The movement is the self-winding calibre MT5400-U, with a 65-hour power reserve and Master Chronometer certification. The Black Bay 58 has a unidirectional rotating bezel and a screw-down crown. The bracelet is steel, with three links in a rivet style and a steel folding clasp.