Tudor Black Bay 54

The Tudor Black Bay 54, reference M79000N-0002, is a dive watch with a 37mm steel case. It measures 11.2mm thick, with polished and satin finishing and a 20mm lug width. A unidirectional rotating bezel in steel with an aluminium insert tops the case, and the domed dial sits under a domed sapphire crystal. Inside is the self-winding manufacture calibre MT5400, a chronometer-certified movement with 70 hours of power reserve. Hands and indices carry luminous treatment, and central seconds run from a screw-down crown bearing the Tudor rose. The black dial pairs with a rubber strap on a steel folding clasp. Water resistance reaches 200 metres, thanks in part to that screw-down crown.