While Audemars Piguet has produced some of the finest skeletonized watches over the decades, a skeletonized Royal Oak always impresses. While it is well known that the balance wheel of a timepiece is its beating heart controlling accuracy, a common horological issue occurs when a watch with a single balance and hairspring is tilted vertically, with gravity pulling the hairspring off-center, hence affecting its accuracy. Taking a leap ahead, this issue was resolved with the ref. 15407, featuring two superimposed balance wheels, each equipped with its own hairspring.

While its technical attributes are certainly impressive, the look and feel of the timepiece does not lack excitement. Fitted inside a contemporary 41mm diameter stainless steel Royal Oak case, the skeletonized caliber 3132 is decorated to please with all bridges ruthenium-coated giving the entire movement a gunmetal sheen, with the exception of its golden balance bridge. While the majority of the movement is diamond-cut to perfection, the solid pink gold balance bridge is hand-finished with traditional Swiss watchmaking techniques.

The present reference 15407ST is one not to miss. It is offered in brand new overall condition with no signs of use or wear, and complete with its full set of accessories.