Tudor Black Bay 58

The Tudor Black Bay 58, reference M7939A1A0RU-0001, is a dive watch with a 39 mm steel case. The case is 11.7 mm thick and has a 20 mm lug width. Polished and satin finishes are used on the case. The movement is the self-winding calibre MT5400-U, which is Master Chronometer certified and has a 65-hour power reserve. A domed sapphire crystal covers the burgundy dial, which has applied hour markers. The unidirectional rotating bezel has an anodised aluminium insert. The crown is a screw-down type, and Tudor rates the case to 200 metres. A five-link steel bracelet is fitted with a steel folding clasp.