Audemars Piguet Royal Oak Automatic Diamond Blue Dial Unisex Watch Ref. 15551ST.ZZ.1356ST.05

Silver-tone stainless steel case and bracelet, fixed silver-tone bezel set with diamonds, blue dial accented by silver-tone hands and index hour markers including minute indexes. Calibre AP 5920 automatic movement with 24 jewels operating at 28800 vph (5Hz), providing a ~60-hour power reserve. Analog display features luminescent coating on hour markers and batons for night-time readability, date window visible at the 3 o'clock position through an aperture. Sapphire crystal glass offers scratch resistance and clarity with anti-reflective treatment likely present. Transparent sapphire case back allows visibility of the movement. Unisex round watch face measures 37 mm in diameter. Equipped with a folding clasp that includes a safety release mechanism for secure fastening. Water resistant to 100 meters (approx. 330 ft), suitable for recreational swimming but not scuba diving. Includes functions: hour, minute, second, and date display.