Tudor Black Bay One 31 S&G

Tudor's Black Bay One 31 S&G, reference M79603-0006, has a 31 mm steel case. The case is 9.5 mm thick and has a 17 mm lug width. The bezel is fixed and the crystal is flat sapphire. The watch is set with diamonds and has a black dial. The movement is the MT5201, a self-winding chronometer calibre with a power reserve of approximately 50 hours. The crown is a screw-down type. Tudor rates the case to 100 metres. A steel and gold bracelet is fitted to the watch, with a folding clasp in steel and gold.