Audemars Piguet Royal Oak ‘Ultra thin’ 15202ST.OO.1240ST.01 Automatic AP Calibre 2121 movement. 40 hour power reserve. Steel case, diameter of 39mm. Water resistant to 50 meters. Blue "Petite Tapisserie" pattern dial, white gold applied hour-markers with luminescent coating, white gold Royal Oak hands with luminescent coating, date window at the three position. See through sapphire case back. Steel bracelet with AP folding clasp. Box and papers dated December 2014.