This pre-owned Patek Philippe Perpetual Calendar features a silvery opaline dial. It is equipped with an 18kt white gold case, brown leather strap, fixed 18kt white gold bezel, and spade-shaped hands set against Roman numeral hour markers. The outer rim displays minute markers. Powered by the Calibre 324 S QR Automatic movement with 30 jewels containing approximately 361 parts and beating at 28800 vph (four frequency), it offers a power reserve of about 45 hours. Functions include perpetual calendar, moon phase, leap year calculation, date display, day display, hour, minute, second. Water resistant to 25 meters / 80 feet. Includes a black ebony correction stylus.