Audemars Piguet Royal Oak 39 mm 15305ST.OO.1220ST.01 Steel Skeleton

The Audemars Piguet Royal Oak is one of the most consequential watch designs in modern horology. Conceived by the legendary Gerald Genta and unveiled in 1972, it shattered convention by presenting a luxury sports watch in stainless steel, secured by eight visible hex-head screws on its signature octagonal bezel. Decades later, the Royal Oak remains the undisputed benchmark for integrated-bracelet luxury sports watches, and the Openworked Selfwinding reference 15305ST.OO.1220ST.01 represents the collection at its most theatrically compelling — a timepiece that is as much moving sculpture as it is precision instrument.

At 39 mm in diameter, the 15305ST.OO.1220ST.01 occupies a refined sweet spot in the Royal Oak sizing hierarchy. The stainless steel case is crafted to the exacting standards that define Le Brassus: alternating brushed and polished surfaces catch light from every angle, creating the signature tapisserie-like interplay of textures that no other manufacturer has successfully replicated. The octagonal bezel, secured by its iconic eight screws, is rendered entirely in stainless steel, maintaining the monochromatic, sport-forward aesthetic that made the Royal Oak a cultural icon.

The skeleton dial is where this reference earns its place among the most desirable Royal Oak variants in existence. Rather than concealing the movement beneath a classic Grande Tapisserie dial, Audemars Piguet's master craftsmen have meticulously openworked the bridges and plates to reveal the automatic movement within, framed by index hour markers that preserve legibility. Light passes through the dial, animating the watch with every degree of wrist rotation and offering an ever-changing view of the mechanical choreography beneath the sapphire crystal.

The movement powering the 15305ST.OO.1220ST.01 is an Audemars Piguet automatic selfwinding caliber, a testament to the manufacture's centuries-deep expertise in mechanical watchmaking. Openworking a movement is one of the most demanding disciplines in high watchmaking: each component must be individually shaped, finished, and chamfered by hand to meet aesthetic standards that match — and in many cases exceed — purely functional ones. Owning this watch means wearing a micro-sculpture of horological art on your wrist.

On the wrist, the Royal Oak Openworked delivers a presence that is simultaneously understated and electrifying. The stainless steel integrated bracelet, engineered with the same obsessive attention to fit as the original 1972 design, contours naturally to the wrist and transitions seamlessly from the case. Whether paired with a business suit or weekend casual wear, the 15305ST.OO.1220ST.01 commands a second glance — and then a long, admiring look through that extraordinary dial.

Bizak & Co. is proud to offer this certified authentic pre-owned Audemars Piguet Royal Oak Openworked Selfwinding ref. 15305ST.OO.1220ST.01 to discerning collectors and first-time Royal Oak buyers alike. Every pre-owned timepiece in our inventory is rigorously authenticated, and our team of specialists is available to answer every question before you buy. Explore this reference online at bizakandco.com or reach out directly — acquiring a Royal Oak Openworked through Bizak & Co. is an experience as refined as the watch itself.