Audemars Piguet Men's Royal Oak Automatic Watch - Blue Dial Perpetual Calendar

Ceramic case and bracelet secured with 8 screws, fixed ceramic bezel. Features an analog blue dial with luminous index hour markers and week indicators around the outer rim. Includes perpetual calendar functionality along with moonphase display, day of the week indicator, date function, and month/date indication including leap year capability. Powered by Audemars Piguet Calibre AP 5134 automatic movement (derived from AP 2120), containing 38 jewels composed of 374 parts, beating at 19800 vph with a power reserve of about 40 hours. Protected by sapphire crystal and equipped with a screw-down crown and transparent case back. Water resistant to 200 meters / 660 feet depth. Octagonal shaped case measuring 41 mm in diameter and 9.5 mm thick, featuring butterfly clasp closure. Part of the Royal Oak series from Audemars Piguet.