Audemars Piguet Royal Oak Rose Gold 41mm Double Balance Wheel Openwork Skeleton (Reference # 15407OR.OO.1220OR.01)
The Royal Oak Double Balance wheel Openworked tackles these stabilising issues by fixing a second balance wheel and balance-spring assembly on the same axis. The new patented geometry involves a very complex manufacturing procedure, but the payoff is huge: greatly improved precision and stability. 18-carat pink gold case, glareproofed sapphire crystal and caseback, screw-locked crown, water-resistant to 50 m. Slate grey openworked dial, pink gold applied hour-markers and Royal Oak hands with luminescent coating. 18-carat pink gold bracelet with AP folding clasp.