Cartier Rotonde de Cartier Astrotourbillon Watch
47mm 18K pink gold case, 15.5mm thick, sapphire back, circular grained crown set with a sapphire, sapphire crystal, silvered dial with guilloché silvered upper and lower dials, black transferred Roman numerals with satin-brushed sunray finish, caliber 9451 MC manual movement, approximately 48 hours of power reserve, brown alligator strap, double adjustable deployant buckle in 18K pink gold. Water resistant to 30 meters.
Cartier Rotonde de Cartier Astrotourbillon Cristal de Carbone Watch
47mm niobium-titanium case, 15.5mm thick, beaded crown set with a black spinal cabochon, sapphire crystal, slate-gray galvanized dial with satin-finish sunray effect, white transferred Roman numerals, rhodiumized steel sword-shaped hands with superluminova coating, 9460 MC self-winding movement with astrotourbillon complication and carriage rotating around the dial in 1 minute, tourbillon carriage and escapement in carbon crystal requiring no regulation or lubrification, approximately 48 hours of power reserve, black alligator strap, 18K white gold double adjustable folding buckle. Water resistant to 30 meters.