Silver-tone stainless steel case with fixed silver-tone bezel and blue dial featuring silver-tone hands, Roman numeral hour markers, and a date display at the 3 o'clock position. Equipped with Rolex Calibre 2236 automatic movement (caliber number), operating at 28800 vph frequency, powered by approximately 55 hours of power reserve including 31 jewels. Features an sapphire crystal scratch-resistant bezel and case back, screw-down crown closure, round case shape measuring 31mm in diameter with Oyster clasp bracelet system. Water resistant to 100 meters / 330 feet (approximate depth). Luxury analog watch functions include hour, minute, second display and chronometer status. Part of the Datejust series from Rolex.