Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G, reference M79603-0002, has a 31mm steel case with a polished and satin finish. It measures 9.5mm thick and pairs with a fixed bezel in solid yellow gold. A self-winding Manufacture Calibre MT5201 drives the watch, certified as a chronometer and rated to a 50 hour power reserve. The silver dial sits beneath a flat sapphire crystal and shows central seconds along with luminous hands and indices. The screw-down winding crown carries the Tudor rose in relief under a yellow gold cap. Centre links in steel and gold connect to a T-fit folding clasp with safety catch, its logo finished in solid yellow gold. That clasp closes on a case built to withstand depths of 100 metres.