Audemars Piguet Royal Oak 15407ST.OO.1220ST.01 Double Balance Wheel Stainless Steel Openworked Dial (2022)

$148,000.00

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The Audemars Piguet Royal Oak 15407ST.OO.1220ST.01 is a striking showcase of technical innovation and architectural watchmaking, executed in classic stainless steel with a fully openworked dial. Measuring 41mm, the case retains the Royal Oak’s iconic design elements—octagonal bezel with exposed screws, integrated bracelet, and a mix of brushed and polished finishing that enhances its geometric form.

What sets this reference apart is the stunning display of the double balance wheel mechanism, introduced by Audemars Piguet to improve precision and stability. The openworked dial and movement bridges reveal a symmetrical, hand-finished landscape of gears, wheels, and twin balance assemblies, with the bridges treated in dark grey for striking contrast. The Caliber 3132, visible from both the front and sapphire caseback, features two balance wheels and two hairsprings mounted on the same axis, oscillating in harmony—a patented innovation designed to enhance chronometric performance.

Blending bold aesthetics with horological ingenuity, the 15407ST is more than just a skeleton watch—it’s a high-performance, technically complex timepiece that remains deeply connected to the Royal Oak’s industrial-chic heritage. Ideal for collectors who appreciate both mechanical artistry and iconic design.

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The Audemars Piguet Royal Oak 15407ST.OO.1220ST.01 is a modern masterpiece that showcases the brand’s technical ingenuity and signature design language. Crafted in stainless steel, the 41mm case features the iconic octagonal bezel with exposed screws, satin-brushed finishing, and polished bevels that highlight the architectural form of the Royal Oak. This reference stands out with its openworked dial, offering a captivating view of the intricate inner workings of the selfwinding double balance wheel mechanism.

Introduced as a significant innovation by Audemars Piguet, the double balance wheel system is designed to improve stability and precision. This mechanism is fully visible from both the dial side and the sapphire caseback, allowing collectors to admire the symmetry and complexity of the openworked movement. The layered construction of the bridges and gear train is enhanced by the hand-finished anglage and fine Geneva stripes that demonstrate the maison’s haute horlogerie craftsmanship.

The watch is powered by the Calibre 3132, beating at 3 Hz with a 45-hour power reserve, and is notable for how it fuses mechanical sophistication with an ultra-contemporary aesthetic. The steel integrated bracelet completes the timepiece with a seamless, sculptural flow across the wrist, ensuring both comfort and visual continuity.

Ideal for collectors drawn to mechanical transparency and advanced innovation, the Royal Oak 15407ST.OO.1220ST.01 is a remarkable execution of Audemars Piguet’s tradition of pushing the boundaries of design and technical performance.

Reference number
15407ST.OO.1220ST.01
Model
Royal Oak Openworked
Movement
Automatic
Case Material
Stainless Steel
Bracelet Material
Stainless Steel
Dial
Openworked
Case Diameter
41mm
Year
2022
Condition
Pre-Owned (Very Good)
Box & Papers
Original Box, Original Papers

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