42 mm titanium and steel case with satin finish Numbered steel case back. Titanium unidirectional rotatable 60-minute graduated bezel with ceramic matt black disc and graduations with beige luminescent coating. Dial: Black. Sapphire crystal. Titanium screw-down winding crown at 9 o'clock with the TUDOR logo Automatic helium escape valve at 3 o'clock. Titanium bracelet with folding clasp and safety catch in steel with bracelet extension system developed and patented by TUDOR. large size. Manufacture Calibre MT5612-LHD (COSC) Self-winding mechanical movement with bidirectional rotor system. Waterproof to 500 m (1,640 ft)