The TUDOR Black Bay One 39 combines a clean, versatile design with the distinctive character of the Black Bay collection. Its 39 mm stainless steel case with polished and satin finishes is complemented by a blue dial, a smooth stainless steel bezel and a flat sapphire crystal. The COSC-certified Manufacture Calibre MT5602 offers approximately 70 hours of power reserve and water resistance to 100 metres. A stainless steel bracelet with the T-fit clasp ensures a comfortable and precise fit on the wrist.