Audemars Piguet Royal Oak Tourbillon 26511PT.OO.1220PT.01 Extra-Thin '40th Anniversary' Platinum Openworked Limited Edition of 40

Unveiled in 2012 to crown the Royal Oak fortieth anniversary, this Tourbillon pays homage to the audacious 1972 design that changed watchmaking. Gérald Genta’s original octagon redefined luxury on its terms, and four decades later Audemars Piguet honoured that revolution with a Openworked, extra-thin masterpiece in platinum, the noblest of metals. Issued in a scant 40 pieces—one for each year—it represents a landmark tribute, uniting the collection’s founding spirit with the manufacture’s exalted craft and rarity.

Hewn from solid platinum, the 41mm case and matching bracelet carry a weight and lustre no other metal can replicate, the hexagonal bezel screws glinting at its perimeter. Beneath the sapphire, a rhodium-grey skeleton movement is suspended in space, its open bridges revealing the wheelwork and the tourbillon spinning below centre. White-gold hands and applied markers rise above the lattice, delivering a monochromatic purity that lets the mechanism itself command every glance.

*This timepiece is a limited edition of 40 pieces.