Audemars Piguet Royal Oak Watch. At the time of its deisng, this watch was known to be avant garde for its hezagonal design. 41mm x 9.80mm stainless steel case, with 18K Pink gold bezel. sapphire crystal back, screw-locked crown, glareproofed sapphire crystal, white dial, pink gold applied hour-markers with luminescent coating, and gold Royal Oak hands with luminescent coating , self-winding Audemars Piguet Calibre 3120 movement with date and large seconds, approximately 60 hours of power reserve, stainless steel and 18K Pink gold bracelet. Water resistant to 50 meters.