Audemars Piguet Royal Oak Self Winding Double Balanced Wheel Openworked - 41mm Black Ceramic Case - Openworked Dial - Bracelet - 15416CE.OO.1225CE.0141 mm black ceramic case, 9. 7 mm thick, glareproofed sapphire crystal back, glareproofed sapphire crystal, openworked slate grey dial with pink gold applied hour markers and Royal Oak hands with luminescent coating, Calibre 3132 self winding movement with hours, minutes, center seconds, approximately 45 hours of power reserve, black ceramic bracelet, AP folding buckle. Water resistant to 50 m.