Sapphire crystal. Stainless steel case and bracelet with fixed silver-tone bezel. Silver dial featuring index hour markers, analog display. Powered by Rolex Calibre 2232 automatic movement containing 31 jewels; beats at 28800 vph (4.4 Hz); approx 55-hour power reserve. Screw-down crown. Solid case back. Round shape, 28 mm size. Oysterlock clasp. Water resistant to 100 meters / 330 feet. Functions include hour, minute, second and chronometer.