Tudor Black Bay One 36

The Tudor Black Bay One 36, reference M79640-0002, comes in a 36mm steel case with a polished and satin finish. The case measures 10.5mm thick, with a 19mm lug width. A flat sapphire crystal covers the blue dial, which carries luminous hands and indices. Inside is the self-winding manufacture calibre MT5400, a COSC-certified chronometer movement with 70 hours of power reserve. The screw-down crown bears the Tudor rose in relief, and the display shows a central seconds hand. A steel bracelet with polished and satin finish closes with a folding clasp and safety catch. The case is waterproof to 100 metres.