The Audemars Piguet Royal Oak Double Balance Wheel Openworked Ref. 15407ST.OO.1220ST.02 is one of the most technically impressive and visually distinctive interpretations of the iconic Royal Oak. Crafted entirely in stainless steel, its 41mm case retains the unmistakable octagonal bezel, exposed screws, and integrated bracelet that have defined the collection for decades.

At the center of the watch is its spectacular openworked dial, offering an unobstructed view of the intricate architecture of the movement. Pink-gold-toned applied hour markers and Royal Oak hands provide a striking contrast against the darkened openworked components, while the exposed mechanics give the watch remarkable depth and dimension from virtually every angle.

Powering the 15407ST is Audemars Piguet’s self-winding Caliber 3132, distinguished by the manufacture’s patented Double Balance Wheel mechanism. Two balance wheels and two hairsprings are assembled on the same axis, improving stability and precision while creating one of the most recognizable mechanical displays in modern haute horlogerie. The exceptional finishing can be appreciated from both the dial and sapphire caseback.

Combining the legendary Royal Oak design with advanced watchmaking and extraordinary openworked craftsmanship, this has become one of the most desirable references within the modern Audemars Piguet collection. Its stainless-steel construction, exposed Double Balance Wheel movement, and unmistakable presence make it an exceptional choice for collectors seeking a Royal Oak that showcases both technical innovation and iconic design.