TUDOR watch. Black Bay Pro. 39 mm steel case with polished and satin finish. Riveted steel bracelet with polished and satin finish. Domed sapphire crystal. Black dial. 24-hour graduated fixed bezel in satin-brushed steel. Screw-down winding crown in steel with the TUDOR rose in relief. Manufacture Calibre MT5652 (COSC) Self-winding mechanical movement with bidirectional rotor system. Date. Approximately 70 hour power reserve.