The Audemars Piguet Royal Oak 15407BC.GG.1224BC.01 was introduced in 2018. It pairs the self-winding, double balance caliber 3132 with a white gold case of 41mm (vs the 37mm of the earlier 15466BC.GG.1259BC.01) with frosted finish.
Self-winding, open-worked movement. In an effort to increase stability and precision a second balance wheel and balance-spring are mounted to the same axis as the original, in effect increasing the mass and thus inertia over the use of a single balance assembly of the same size. Movement shown from the dial-side.
