The Audemars Piguet Royal Oak Extra Thin Selfwinding Flying Tourbillon 26660ST.OO.1356ST.02 was introduced in 2022, replacing the near-identical version that was part of the 50th Anniversary celebrations. This Royal Oak has a case of 37mm and a plum dial. This watch is powered by an extra-thin movement with flying tourbillon (caliber AP 2968).