The Audemars Piguet Royal Oak Double Balance Wheel Openworked reference 15466BC.GG.1259BC.01 is a 37mm luxury timepiece that showcases a blend of technical mastery and artisanal finishing. The watch is constructed from 18-carat white gold and features a unique frosted finish achieved through a traditional Florentine hammering technique, which creates a shimmering, diamond-like texture on the case and integrated bracelet. This model is equipped with a glareproofed sapphire crystal and caseback, a screw-locked crown, and is water-resistant to 50 meters. The rhodium-toned openworked dial reveals the intricate inner workings of the movement, complemented by pink gold applied hour markers and Royal Oak hands with luminescent coating for enhanced legibility.
At the heart of this timepiece is the self-winding Calibre 3132, a movement notable for its patented double balance wheel geometry. By incorporating two balance wheels and two hairsprings on the same axis, the system significantly improves chronometric precision and stability. The movement consists of 245 parts, contains 38 jewels, and operates at a frequency of 3 Hz, providing a power reserve of approximately 45 hours. This architecture allows the complex mechanism to be admired from both the dial side and the exhibition caseback, emphasizing the high level of hand-finishing applied to the bridges and components.
General reviews of the 15466BC frequently praise its 37mm proportions, which make it a versatile choice for a wide range of wrist sizes, often described as a perfect mid-size option that balances presence with wearability. The frosted gold aesthetic is highly regarded for its distinctive brilliance, though some collectors note that the intense shimmer may be bold for those preferring a traditional brushed finish. The openworked Calibre 3132 is widely celebrated as a horological masterpiece, offering a more technically advanced and visually engaging alternative to standard skeletonized movements. While the complexity of the movement and the labor-intensive frosting process contribute to its high market value and exclusivity, the watch is consistently recognized as a premier example of modern haute horlogerie.