Rotonde de Cartier Day and Night retrograde moon phase watch, 40 mm, Manufacture self-winding mechanical movement, caliber 9912 MC. Rhodiumized 18K white gold case, rhodiumized 18K white gold bezel set with 68 brilliant-cut diamonds totaling 0.99 carats, rhodiumized 18K white gold beaded crown set with one diamond of 0.12 carats, rhodiumized 18K white gold and blue paillonné lacquer dial set with 118 brilliant-cut diamonds totaling 0.29 carats and with 28 blue sapphires, rhodiumized steel sword-shaped minute hand, rhodiumized steel moon-shaped retrograde moon phase hand. Shiny dark blue alligator-skin strap, rhodiumized 18K white gold double adjustable folding buckle set with 43 diamonds totaling 0.42 carats. Day and night indicators complication with retrograde moon phases. Individually numbered movement consisting of 290 parts including 44 jewels. Total movement diameter: 30 mm, movement thickness: 6.44 mm, balance: 28,800 vibrations/hour, power reserve approx. 48 hours. Sapphire crystal and case back. Water-resistant to 3 bar (approx. 30 meters/100 feet).
The Rotonde de Cartier collection showcases the most advanced movements in Cartier Fine Watchmaking: the Astrorégulateur, minute repeater, Astrotourbillon and skeleton grande complication.