Rotonde de Cartier Earth and Moon, tourbillon, second time zone and moon phase on demand, 47 mm, Manufacture mechanical movement with manual winding 9440 MC. Case in platinum, beaded crown in platinum set with a blue sapphire cabochon, dial partially decorated with lapis lazuli, 18K white gold grid in the form of Roman numerals, sword-shaped hands in blued steel. Strap in black alligator skin, double adjustable folding buckle in 18K white gold. Complications: tourbillon, second time zone and moon phase on demand. Individually numbered movement containing 362 parts including 40 jewels. Total diameter of movement: 40 mm, thickness of the movement: 5.65 mm, balance: 21,600 vibrations/hour, power reserve approx. 3 days. Sapphire crystal and case back. Case thickness: 16.65 mm. Water-resistant to 3 bar (30 meters).
The Rotonde de Cartier collection showcases the most advanced movements in Cartier Fine Watchmaking: the Astrorégulateur, minute repeater, Astrotourbillon and skeleton grande complication.