Tudor calibre MT5400 automatic movement, 27 Jewels, 28800 vph bitting, approx. 70-hour power reserve; Bronze case with bronze strap and deployment clasp; Uni-directional rotating bezel featuring a brown invalid ring insert; Brown dial showing analog time with luminous brown hands and dot hour markers (3,6,9 Arabic numerals at positions); Minute markers around the outer rim; Sapphire crystal for scratch resistance; Screw down winding crown; Solid case back; Round 39 mm case size with thickness of approx. 11.9 mm; Water resistant to 200 meters / 660 feet depth; Functions include hour, minute, second and chronometer; Part of the Black Bay Fifty Eight Series; Swiss Made luxury watch.