Authentic Tudor Black Bay 54, model M79000N-0001. Features a brushed and polished stainless steel case with three-link stainless steel bracelet. Equipped with a uni-directional rotating bezel. Dial is black with gold tone hands and dot/index hour markers including minute markers around the outer rim. Powered by Tudor Calibre MT5400 (COSC) automatic movement, offering 70 hours power reserve, screw down crown, scratch resistant sapphire crystal lens, round case shape measuring 37mm in diameter. Water resistant to 200 meters / 660 feet depth with a 5 year WatchMaxx warranty.