Audemars Piguet Royal Oak September 3, 2026·WPA Staff Member Retail vs. secondary-market tracking for the Audemars Piguet Audemars Piguet Royal Oak (Ref. 15510ST). Related Stories Hublot x Jeff Koons: When Pop Art Gets a Movement Khachanov Reaches the US Open Semi-Finals in His Own Cvstos Signature Watch Jay-Z Wears a $1.2 Million F.P. Journe Vagabondage II in Rose Gold at His London Concert