Reminiscent of a time when Tudor divers' watches were first being made, the Black Bay Fifty-Eight comes adorned with gold finishing to its hour markers, hands and minute track of its black and steel bezel. Equipped with the Manufacture Calibre MT5402—the second family of movements by Tudor— the watch can run for about 70 hours smoothly and reliably. This is due to the movement structure that has been designed to ensure robustness, longevity and reliability.