Tudor Black Bay 54

The Tudor Black Bay 54, reference M79000B-0002, is a dive watch with a 37mm steel case measuring 11.2mm thick. A unidirectional rotating bezel in steel with an aluminium insert surrounds the blue dial, which sits under a domed sapphire crystal. The self-winding manufacture calibre MT5400 drives the watch, a chronometer-certified movement with a power reserve of approximately 70 hours. A screw-down crown protects the movement, and the dial shows a central seconds hand with luminous hands and indices for legibility in low light. The watch is fitted on a rubber strap with a steel folding clasp. Its screw-down crown helps hold the case to a 200 metre water resistance rating.