Tudor Black Bay One 31 S&G

The Black Bay One 31 S&G (ref. M79603-0008) pairs a 31mm steel case with a fixed bezel in solid yellow gold, measuring 9.5mm in thickness and fitted with a sapphire crystal. The champagne-colour dial, flat in construction, is set with diamond hour markers and luminous hands and markers, complemented by a bracelet combining steel and yellow gold links secured with a "T-fit" folding clasp. It is powered by the automatic Tudor Manufacture Calibre MT5201, a COSC-certified chronometer movement offering 50 hours of power reserve, and the case is water resistant to 100 metres.