Rotonde de Cartier Minute Repeater Mysterious Double Tourbillon Watch, 45 mm, Manufacture mechanical movement with manual winding, caliber 9507 MC. Case in 18K pink gold, beaded crown in 18K pink gold set with a blue cabochon sapphire, sword-shaped hands in 18K pink gold. Semi-opaque dark gray alligator skin strap (additional semi-opaque black alligator strap), interchangeable folding buckle in 18K pink gold. Minute repeater complication, mysterious double tourbillon. Watch with individual numbering, limited edition of 20 pieces. Movement consisting of 448 components, including 45 rubies. Movement total diameter 39.30 mm, thickness 6.05 mm, balance wheel at 21,600 vibrations / hour, power reserve of approximately 84 hours. Sapphire crystal glass and case back. Thickness 11.15 mm. Waterproof up to 30 meters.