Tudor Black Bay One 31 S&G

Tudor's Black Bay One 31 S&G, reference M79603-0001, has a 31mm steel case with a polished and satin finish. The case measures 9.5mm thick, with a lug width of 17mm. A fixed bezel in solid yellow gold sits above the black dial, protected by a flat sapphire crystal. Inside is the manufacture calibre MT5201, a self-winding chronometer movement with a power reserve of approximately 50 hours. The screw-down crown carries the Tudor rose in relief under a yellow gold cap. Hands and indices are luminous, and the dial runs a central seconds display. The steel and gold bracelet closes with a folding clasp in the same materials, and Tudor rates the case to 100 metres.