Automatic movement Tudor Calibre T600 with 25 Jewels and a biting rate of 28800 vph; approximately 38-hour power reserve. Silver-tone stainless steel case measuring 41mm round in diameter. Fixed silver-tone stainless steel bezel. Black fabric strap fitted with a buckle clasp. Blue dial features silver-tone hands, index hour markers for hours and minutes, outer minute markers. Includes luminous coating on the hour markers and central seconds hand. Sapphire crystal provides scratch resistance to protect the analog dial. Screw down winding/crown is water resistant up to 150 meters or 500 feet (suitable for swimming). Solid case back. Functions: hour, minute, second. Sport watch style with Swiss Made quality indication.