Rolex Oyster Perpetual mens watch, automatic movement with chronometer rating. Features a stainless steel case and bracelet, fixed bezel, blue dial with luminous silver-tone hands and hour markers. Equipped with minute markers around the outer rim, scratch resistant sapphire crystal glass, screw down crown, solid case back, and is Swiss made. Powered by the Rolex Calibre 3230 automatic movement containing 31 jewels, operating at 28800 vph (5.5 Hz) with a power reserve of about 70 hours. Water resistant to 100 meters / 330 feet.