Tudor Black Bay One 39 S&G

Tudor's Black Bay One 39 S&G, reference M79663-0007, has a 39 mm steel case. The case is 12.0 mm thick with a 21 mm lug width. The self-winding Manufacture Calibre MT5602 is a chronometer with a power reserve of approximately 70 hours. A flat sapphire crystal covers the silver dial, which has diamond hour markers. The fixed bezel is steel with a yellow gold cap. The screw-down crown is steel under a yellow gold cap. A steel and gold bracelet is fitted, with a folding clasp in steel and gold. Tudor rates the case to 100 metres.