Royal Oak 41mm Chronograph 20th Anniversary Limited Edition - Platinum and Titanium

The extraordinary Audemars Piguet Royal Oak Chronograph Ref. 26331IP.OO.1220IP.01 represents a landmark commemorative edition celebrating the 20th anniversary of the Royal Oak Chronograph collection. Released in 2017 as a strictly limited production of just 500 pieces worldwide, this exceptional timepiece showcases AP's mastery of contrasting materials through its innovative combination of lightweight titanium and precious platinum.

The sophisticated 41mm titanium case houses a mesmerizing slate grey "Grande Tapisserie" patterned dial—a hallmark of the Royal Oak aesthetic—complemented by contrasting blue chronograph counters that create a striking visual depth. Applied white gold hour markers with luminescent coating ensure exceptional legibility under all conditions, while the date window positioned between 4:00 and 5:00 introduces a distinct asymmetry in the dial.

What truly distinguishes this anniversary model is its revolutionary mixed-metal execution. The signature octagonal bezel is crafted from polished 950 platinum, creating a dramatic contrast against the brushed titanium case. This material interplay continues throughout the integrated bracelet, where polished platinum center links are seamlessly integrated between the brushed titanium outer links—an engineering feat demonstrating AP's exceptional attention to detail and finishing expertise.

Powering this technical masterpiece is the self-winding Caliber 2385 movement, based on the legendary Frédéric Piguet 1185, delivering precise chronograph functionality with approximately 40 hours of power reserve. The solid caseback hides the movement's exquisite finishing, including Côtes de Genève decoration, circular graining, and a gold oscillating weight bearing the Audemars Piguet signature.

Available exclusively on Master Luxury, this preowned Royal Oak Chronograph is preserved in excellent condition. This authenticated timepiece represents an extraordinary opportunity to acquire a historically significant limited edition celebrating two decades of one of horology's most influential chronograph designs.