Audemars Piguet Royal Oak Chronograph "50th Anniversary"

18kt rose gold case and bracelet. Fixed 18kt rose gold bezel. Black dial with rose gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display between 4 and 5 o'clock position. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Audemars Piguet Calibre 2385 Automatic movement, containing 37 Jewels, composed of 304 parts, bitting at 21600 vph, and has a power reserve of approximately 40 hours. Scratch resistant sapphire crystal. Screw down crown. Transparent see through case back. Octagon case shape, case size: 41 mm. Deployment with push button release clasp. Water resistant at 50 meters / 165 feet. Functions: chronograph, column wheel, date, hour, minute, small second.