Cartier Rotonde de Cartier Astrotourbillon Watch - 47 mm White Gold Case - W1556204

47mm 18K white gold case, 15.5mm thick, circular grained crown set with a sapphire, sapphire crystal, silvered dial with guilloche silvered upper and lower dials, black transferred Roman numerals with satin-brushed sunray finish, caliber 9451MC manual movement, approximately 48 hours of power reserve, black alligator strap, double adjustable deployant buckle in 18K white gold. Water resistant to 30 meters.