Vacheron Constantin Style No: 4010U/000G-B330 Vacheron Constantin Patrimony Moon Phase And Retrograde Date Celetstial Mechanics Watch

42.50 mm 18K white gold case, 9.70 mm thick, transparent sapphire back, white dial, Caliber 2460 R31L automatic movement with hours, minutes, precision moon phase, retrograde hand-type date, approximately 40 hours of power reserve, black alligator Mississippiensis strap, 18K white gold ardillon buckle. Water resistant to 3 bar.