Histoire de Tourbillon 7

Histoire de Tourbillon 7 in 18K white gold. Mechanical manual winding, 84 jewels, 21,600 vibrations per hour. Excentered hours and minutes, power reserve display. Two biaxial tourbillons connected by a spherical differential. Openworked, rhodium, red anodized aluminium dial. Open sapphire crystal case back. Diameter: 51mm