Tudor Black Bay One 31

The Black Bay One 31 (M79600-0005) is housed in a 31 mm steel case with a thickness of 9.5 mm and a sapphire crystal. The blue dial is set with diamond-set hour markers and features luminous hands and markers, complemented by a stainless steel bezel with polished and satin finish. It is fitted on a stainless steel bracelet with a "T-fit" folding clasp and safety catch, and is powered by the automatic Tudor Manufacture Calibre MT5201, COSC-certified as a chronometer, offering 50 hours of power reserve and water resistance to 100 metres.