Unveiling our latest RD3 in 37 mm. After 5 years of research and development, our engineers and watchmakers succeeded in adapting the flying tourbillon to the exact dimensions of the original extra-thin 39 mm Jumbo case. Why stop there? They challenged themselves further by fitting the same calibre in a 37 mm case. The result is our latest innovation: the Royal Oak Selfwinding Flying Tourbillon Extra-Thin 37 mm. Ref. 26660ST.OO.1356ST.01 #AudemarsPiguet #RoyalOak