Tudor Black Bay One 39 S&G

Tudor's Black Bay One 39 S&G, reference M79663-0005, has a 39 mm steel case with a mix of polished and satin finish. It measures 12 mm thick, with lugs at 21 mm. The case is fitted with a flat sapphire crystal over a champagne dial, and the fixed bezel wears a yellow gold cap. Inside is the manufacture calibre MT5602, a self-winding chronometer movement with 70 hours of power reserve. The screw-down crown carries a yellow gold cap as well, and the hands and indices are luminous. The steel and gold bracelet closes with a folding clasp finished in the same combination. Waterproofness is rated to 100 metres.