Cartier Rotonde de Cartier Day Night Retrograde Moon Phases Watch - 43.5 mm Pink Gold Case - W1556243

43.5mm 18K pink gold case, 12.77mm thick, sapphire back, beaded crown set with a blue sapphire cabochon, 18K pink gold bezel, sapphire crystal, silver dial with white galvanized guilloche, caliber 9912 MC self-winding movement with apple-shaped minute hand in blued steel, retrograde moon-phase hand in the form of a lunar crescent in blued steel, approximately 48 hours of power reserve, brown alligator skin strap, folding buckle. Water resistant to 3 bar.