Tudor Black Bay One 31 S&G

Tudor Black Bay One 31 S&G, reference M79603-0005, has a steel case measuring 31mm across and 9.5mm thick. The fixed bezel is solid yellow gold, and the champagne dial sits under 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 a central seconds hand runs off the axis. The bracelet combines steel and yellow gold links, closed by a folding clasp with a safety catch. It stays water resistant to a depth of 100 metres.