he Black Bay 58 gets its name from the year 1958, in which the first TUDOR divers’ watch waterproof to 200 metres (660 ft), reference 7924 or “Big Crown”, was introduced. Among other aesthetic nods to this historic watch, the model offers a case 39 mm in diameter in keeping with the characteristic proportions of the 1950s.
Case: 39 mm steel case with leather strap
Movement: Manufacture Calibre MT5402 (COSC) Self-winding mechanical movement with bidirectional rotor system
Power Reserve: Power reserve of approximately 70 hours Winding
Crown: Winding Crown Steel screw-down winding crown, with the TUDOR rose in relief, with circular satin-brushed steel winding crown tube
Waterproofness: Waterproof to 200 m (660 ft)
Bezel: Unidirectional rotatable bezel in steel with 60-minute graduated disc in matt blue anodised aluminium and silver gilded markings and numerals
Dial: Blue, domed
Crystal: Domed sapphire crystal
Model number: M79030B-0002