Audemars Piguet Royal Oak Tourbillon Extra-Thin 41 mm 26517SR.OO.1220SR.01 Steel/Rose Gold Analog Audemars Piguet Royal Oak Tourbillon Extra-Thin 41…

The Audemars Piguet Royal Oak Tourbillon Extra-Thin reference 26517SR.OO.1220SR.01 represents one of the most technically ambitious expressions of an icon. When Gerald Genta sketched the original Royal Oak in a single night for the 1972 Basel fair, he gave the world an eight-sided porthole case, exposed hexagonal screws, and an integrated bracelet that broke every convention of fine watchmaking. More than five decades later, the Royal Oak Tourbillon Extra-Thin carries that rebellious DNA forward while layering in one of horology's most revered complications — the flying or open-worked tourbillon — within a case profile thin enough to slide effortlessly beneath a shirt cuff.

At 41mm, the case of the 26517SR.OO.1220SR.01 occupies exactly the right footprint for a modern gentleman's dress-sport watch. The case body is crafted in stainless steel, while the octagonal bezel is rendered in rose gold, creating the warm two-tone contrast — often called Steel and Rose Gold or SR in Audemars Piguet's reference nomenclature — that makes this particular configuration immediately recognizable on the wrist. The screw-down crown reinforces the watch's structural integrity, and every surface transition between brushed and polished finishing is executed to the exacting standard that Audemars Piguet's Le Brassus atelier is celebrated for worldwide.

The dial is one of the most compelling details of this reference. Rendered in a deep blue that shifts in character from rich navy to luminous sapphire depending on the light, it features the Grande Tapisserie petit-square pattern that has been a hallmark of the Royal Oak since its inception. Applied index hour markers carry luminous material, ensuring legibility in low-light conditions — a practical nod from Audemars Piguet that grounds even this rarefied complication watch in everyday reality. The tourbillon aperture, typically positioned at six o'clock on Royal Oak Tourbillon references, transforms the dial from a static display into a kinetic exhibition of micro-mechanical artistry.

Powering the 26517SR.OO.1220SR.01 is an Audemars Piguet hand-wound movement that incorporates a tourbillon regulator — the classical complication invented by Abraham-Louis Breguet in 1801 to counter the effects of gravity on a pocket watch's balance wheel and now celebrated as the ultimate expression of a master watchmaker's craft. The manual-wind nature of the movement is a deliberate choice: it preserves an ultra-thin case profile that would be compromised by the added height of an automatic rotor, and it creates a daily ritual of winding that deepens the owner's connection to the watch. The caliber's architecture is engineered to Audemars Piguet's extra-thin philosophy, keeping the overall case height remarkably slender for a watch of this complexity.

The integrated rose gold and stainless steel bracelet is inseparable from the Royal Oak experience. Its tapering links, alternating brushed and polished surfaces, and AP-signed folding clasp flow organically from the case in a way that no aftermarket bracelet could replicate. On the wrist, the 26517SR.OO.1220SR.01 manages the rare feat of feeling simultaneously substantial and weightless — a tribute to decades of refinement in the Royal Oak bracelet's engineering. The two-tone metal combination also broadens the watch's versatility, pairing as naturally with a navy blazer as with evening dress.

Bizak & Co. is proud to offer this brand-new Audemars Piguet Royal Oak Tourbillon Extra-Thin 26517SR.OO.1220SR.01 to discerning collectors and enthusiasts seeking one of the most coveted references in contemporary haute horlogerie. As a trusted luxury watch dealer, Bizak & Co. provides certified authenticity on every timepiece we sell, along with the personalized service that a purchase of this significance deserves. We invite you to contact our team directly at bizakandco.com to discuss this reference, confirm current availability, and explore acquisition options — whether you are buying your first tourbillon or adding a cornerstone piece to an established collection.