Our panel members choose their winners in the Tourbillon category of the Grand Prix d’Horlogerie between the Ulysse Nardin Executive Skeleton Tourbillon, Bovet 1822’s Ottantasei Flying Tourbillon, Girard-Perregaux’s La Esmeralda Tourbillon, Louis Moinet’s Sideralis Evo, the Rudis Sylva RS 16 Harmonious Oscillator, and the De Bethune DB28T Kind of Blue Tourbillon.
