Audemars Piguet Royal Oak Perpetual Calendar 26574BA.OO.1220BA.01

Royal Oak Perpetual Calendar 41 Yellow Gold / Blue 1972 The Audemars Piguet Royal Oak Perpetual Calendar reference 26574BA.OO.1220BA.01 was introduced in 2016, according to AP marking a grand return of yellow gold. At 41mm across, its case is slightly larger than its predecessors. Accordingly, the self-winding caliber 5134 is slightly larger as well - plus a week number indicator has been added. In this configuration, the case and bracelet are executed in yellow gold, with a blue dial. 2016 1 Yellow Gold yellow-gold 41 9.5 20 Yellow Gold Sapphire Blue Perpetual Calendar Moon Phases 2 Automatic 5134 40 38 Yellow Gold Yellow Gold 3 Double-Fold Double-Fold Yellow Gold UNWORN Box Papers / Warranty