Antoine Preziuso Tourbillon of Tourbillons Featured above: Winner of the Grand Prix d’Horlogerie de Genève (GPHG) Innovation and Public Prize awards, the Antoine Preziuso Tourbillon of Tourbillons features three tourbillons rotating on a revolving plate. The manually wound movement beets at 21,600 vibrations per hour and contains six ball bearings as well as double serial barrels. The steel case measures 45 millimeters in diameter.