The Audemars Piguet Royal Oak Tourbillon 26521OR.SS.1220OR.01 is designed in a 41mm rose gold case and styled on matching rose gold bracelet. The bezel is adorned with 32 blue sapphires. The blue evolutive tapissiere dial with a skeleton view of the tourbillon function at 6 o'clock hosts baguette-cut blue sapphire hour markers. An exhibition case back offers a glimpse into the Caliber 2924, powering the Tourbillon and timekeeping functions.