Audemars Piguet Royal Oak Offshore Chronograph 26470ST.OO.A028CR.01, full dial view with strap. Audemars Piguet Royal Oak Offshore Batman Chronograph Steel 42mm 26470ST 26470ST.OO.A028CR.01 26470ST.OO.A028CR.01 $22,500.00 Audemars Piguet Royal Oak Offshore Chronograph 26470ST.OO.A028CR.01, close-up of the blue dial with subdials. Audemars Piguet Royal Oak Offshore Real Batman 42mm Steel 26470ST Papers 26470ST.OO.A028CR.01 26470ST.OO.A028CR.01 $22,500.00