Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G, reference M79603-0002, has a 31 mm steel case. The case is 9.5 mm thick. Tudor rates the case to 100 metres. A fixed bezel in solid yellow gold sits on the case, and the silver dial is covered by a flat sapphire crystal. The Black Bay One 31 S&G runs on calibre MT5201, a self-winding movement with a power reserve of approximately 50 hours. The watch is a chronometer and has a screw-down crown. The bracelet is steel and gold, with a folding clasp in steel and gold.