Audemars Piguet Code 11.59 Perpetual Calendar Openworked White Gold 26443NB.OO.D002CR.01

The Audemars Piguet Code 11.59 collection made its debut in 2019 as the maison's most ambitious statement of contemporary watch design in decades—a deliberate declaration that Audemars Piguet could innovate beyond its iconic Royal Oak DNA while retaining every standard of hand-finished, grand-complication excellence the Le Brassus manufacture is celebrated for. Within this collection, the Perpetual Calendar Openworked stands as the undisputed pinnacle: a watch that masters time's most intellectually demanding display while inviting the eye straight through the dial to observe the mechanical ingenuity responsible for it.

Reference 26443NB.OO.D002CR.01 is crafted entirely in white gold, a material choice that lends the 41mm case its cool, near-platinum luminosity and signals serious precious-metal intent. The Code 11.59 case architecture is itself noteworthy: a round middle case is sandwiched between an octagonal caseback and a round bezel, creating layered geometry that reads differently from every angle. Polished and satin-brushed surfaces alternate across the lugs and flanks, a labor-intensive contrast finish executed entirely in-house at the Audemars Piguet ateliers.

The openworked dial is where this reference truly captivates. Rather than hiding the perpetual calendar's intricate wheel train and cam-and-lever system beneath a solid chapter ring, the dial has been architecturally removed to frame the movement bridges and finishing as the visual centerpiece. Index hour markers anchor the periphery, providing legibility without obscuring the breathtaking mechanical landscape beneath. Displaying the day, date, month, moon phase, and leap-year cycle simultaneously, the perpetual calendar complication autonomously accounts for months of different lengths and will not require a date correction until the year 2100.

Power comes from an automatic movement—Audemars Piguet's in-house perpetual calendar caliber—whose hand-beveled bridges, circular-grained plates, and blued screws are entirely visible through the openworked architecture and the sapphire display caseback. The automatic winding rotor is integrated discreetly, preserving the skeletonized aesthetic. This is movement finishing of the highest order, meeting the rigorous standards that have defined Audemars Piguet's reputation for well over a century.

On the wrist, the 41mm white gold case pairs with a refined leather strap that balances the watch's considerable presence with understated elegance, making it equally appropriate for a formal occasion or a distinguished everyday wear statement. The white gold case glows against the strap's texture, and the openworked dial draws admiring glances at every light angle. This is a watch that rewards both the casual observer and the committed horological enthusiast with something new each time it is studied.

Bizak & Co. is offering this reference 26443NB.OO.D002CR.01 brand new, complete with the original Audemars Piguet box and papers, ensuring full manufacturer traceability and warranty eligibility. Acquiring a perpetual calendar openworked timepiece in white gold at this level represents not only a profound statement of personal taste but a sound long-term horological investment. Visit bizakandco.com to buy the Audemars Piguet Code 11.59 Perpetual Calendar Openworked online, or contact our specialists directly—we are here to guide you through every step of the purchase.