Rolex Cosmograph Daytona Chronograph Automatic Diamond Mens Watch 116518ln-0045. Features an 18kt yellow gold case, black rubber strap with Oysterlock clasp, fixed cerachrom bezel incorporating a tachymeter scale. Mother of pearl dial accented by diamond hour markers and minute markers around the outer rim. Analog dial type equipped with luminescent hands. Chronograph function includes three sub-dials for 60-second, 30-minute, and 12-hour measurements. Powered by the Rolex Calibre 4130 automatic movement offering a 72-hour power reserve. Equipped with scratch-resistant sapphire crystal glass, screw down crown, and solid case back. Round case shape measuring 40 mm in diameter. Water resistant up to 100 meters / 330 feet.