Automatic Caliber 4131 movement with 72-hour power reserve. Silver-tone stainless steel case featuring a black dial accented by diamond hour markers and yellow gold-tone hands. Includes minute markers around the outer rim. Two-tone Oyster bracelet combining silver-tone stainless steel and 18kt yellow gold. Fixed Tachymeter bezel in 18kt yellow gold with yellow gold-tone finish. Analog display driven by Luminescent hands, markers, and screw-down crown; scratch-resistant Sapphire crystal lens included. Solid case back. Water resistant to 100 meters / 330 feet (approximate). Original box, manual, international warranty card provided.