Audemars Piguet Royal Oak Concept Tourbillon Chronograph Rose Gold — Skeleton Openworked Dial | Ref. 26223OR.OO.D099CR.01

The Royal Oak Concept series exists beyond the boundaries of conventional watchmaking — it is where Audemars Piguet's engineers are given license to push into the avant-garde. Reference 26223OR.OO.D099CR.01, the Royal Oak Concept Tourbillon Chronograph in 44 mm rose gold, fuses two of horology's most demanding complications into a single, breathtaking architecture. The movement is fully skeletonised and visible through an openworked dial, a presentation that honours the transparency pioneered by Gerald Genta in the original Royal Oak while taking it into an entirely new dimension of mechanical spectacle.

Driven by a manual-wind movement that showcases the tourbillon cage and chronograph mechanism in full relief, this reference offers an unobstructed view of the horological engineering within. The flying tourbillon — suspended without a bridge above the dial — rotates once per minute, countering the effects of gravity on the escapement. The chronograph function adds a second layer of mechanical drama, visible as a living architecture of levers and wheels. Luminous hands ensure legibility despite the complexity of the openworked tableau, and the domed rose gold bezel frames the display with appropriate grandeur.

The 44 mm rose gold case houses this complication with imposing authority, the solid caseback a conscious decision to maintain structural integrity for the manual-winding crown mechanism. A leather strap completes the ensemble with understated elegance — a deliberate contrast to the mechanical pyrotechnics above. Priced at $326,000 and offered for enquiry, the 26223OR is a collector's statement piece: an acquisition that signals deep fluency in the language of advanced horology and appreciation for one of watchmaking's most extraordinary complications.