Tudor Black Bay GMT M79830RB

Case 41mm steel case with polished and satin finish Movement Manufacture Calibre MT5652 (COSC) Self-winding mechanical movement with bidirectional rotor system Built-in architecture Power Reserve Power reserve of approximately 70 hours Winding Crown Steel screw-down winding crown, with the TUDOR rose in relief, with circular satin-brushed steel winding crown tube Waterproofness Waterproof to 200m (660 ft) Bezel Bidirectional rotatable 48 notches bezel in steel with 24-hour graduated anodised aluminium disc in matt burgundy and blue Dial Black, domed Crystal Domed sapphire crystal Bracelet Riveted steel bracelet with polished and satin finish with folding clasp and safety catch