Audemars Piguet Royal Oak Double Balance Wheel Openworked 41 Pink Gold 15407OR.OO.1220OR.01

Audemars Piguet Royal Oak Double Balance Wheel Openworked 41 Pink Gold 15407OR.OO.1220OR.01 The Audemars Piguet Royal Oak 15407OR.OO.1220OR.01 is widely considered one of the most prestigious and technically fascinating timepieces in the modern Royal Oak catalog. Its primary innovation is the patented “Double Balance Wheel” geometry: by incorporating two balance wheels and two hairsprings on the same axis, AP significantly improves the watch’s precision and stability by canceling out the effects of gravity and friction. This mechanical feat is displayed through a breathtaking slate-grey openworked (skeletonized) dial, where every bridge is finished by hand with polished bevels and internal angles that reflect light with every movement of the wrist. The 41 mm case is crafted from brushed and polished 18-carat Pink Gold and is remarkably thin at just 9.9 mm. Despite its delicate openworked nature, it retains a professional water resistance of 50 metres (165 feet) and features the iconic octagonal bezel secured by eight hexagonal white gold screws. The pink gold applied hour-markers and Royal Oak hands are filled with luminescent coating for legibility amidst the complex mechanical backdrop. The watch is integrated into the legendary Royal Oak bracelet in 18-carat pink gold, famous for its seamless taper and the way each individual link is hand-finished to a mirror-like shine on the beveled edges. Key Features Model Name Royal Oak Double Balance Wheel Openworked Reference Number 15407OR.OO.1220OR.01 Case Material 18-carat Pink Gold Dimensions 41 mm (9.9 mm thick) Water Resistance 50 metres (165 feet) Dial Slate Grey Openworked (Skeleton) Crystal Glareproofed Sapphire (Front and Back) Movement Type Self-winding (Automatic) Power Reserve Approx. 45 hours Caliber Manufacture Calibre 3132 Components 245 parts Frequency 3 Hz (21,600 vibrations/hour) Jewels 38 Jewels Bracelet 18K Pink Gold with AP Folding Clasp The Openworked Dial is the result of hundreds of hours of manual labor. The Bridge Work: The slate-grey bridges provide a dark, modern contrast to the pink gold case. Each bridge is meticulously cut away to reveal the inner workings without compromising the structural integrity of the movement. Double Balance Wheel: Visible at the 7 o’clock to 8 o’clock position, the two golden balance wheels oscillating in unison create a mesmerizing visual depth that standard skeleton watches cannot match. Hand Finishing: Every single edge of the movement is hand-beveled and polished. The internal angles—where two beveled edges meet at a sharp point—are particularly difficult to achieve and are a hallmark of “Haute Horlogerie.” The movement is the Manufacture Calibre 3132, built upon the architecture of the legendary 3120. Bi-directional Winding: The 22-carat gold rotor (visible through the sapphire caseback) winds the watch in both directions, ensuring maximum energy efficiency. Precision Innovation: The double balance system doesn’t just look impressive; it creates a “mass-weighted” stability that makes the watch much more resistant to shocks and positional errors.