18kt yellow gold case with a brown leather strap. Fixed 18kt yellow gold bezel. Silvery opaline dial with black spade-shaped hands and Roman numerals hour markers. Minute markers around the outer rim. Dial Type: Analog. Perpetual calendar (date, day of week, leap year, month, moon-phase). Date, moonphase subdials. Patek Philippe Calibre 324 S QR Automatic movement, containing 30 Jewels, composed of 361 parts, bitting at 28800 vph, and has a power reserve of approximately 45 hours. Scratch resistant sapphire crystal. 18k yellow gold fluted royal crown, two position crown. Sapphire crystal case back. Round case shape, case size: 38 mm, case thickness: 11.79 mm. Deployment clasp. Water resistant at 30 meters / 100 feet. Functions: perpetual calendar, moon phase, leap year, date, day, hour, minute, second. Additional Info: 21k gold central rotor, includes correction stylus in ebony and 18k yellow gold. Luxury watch style. Watch label: Swiss Made. Item Variations: 5159J, 5159J001, 5159, 5159J 001, 5159J-001. Patek Philippe Perpetual Calendar 18k Yellow Gold Mens Watch 5159J.