Tudor Black Bay One 31 S&G

Tudor's Black Bay One 31 S&G, reference M79613-0006, has a steel case measuring 31mm across and 9.5mm thick. The fixed bezel is solid yellow gold, set with diamonds, and the silver dial carries diamond hour markers alongside luminous hands and indices. A flat sapphire crystal covers the dial. Inside is the manufacture Calibre MT5201, a self-winding chronometer movement with roughly 50 hours of power reserve. The screw-down crown protects the movement and carries the Tudor rose. The bracelet combines steel and gold, closing with a folding clasp in the same materials. Water resistance is rated to 100 metres.