Cartier Rotonde de Cartier Perpetual Calendar Watch - 40.5 mm Pink Gold Case - W1556217 mother-of-pearl approximately 237 hours of power

approximately 237 hours of power reserve

transparent sapphire-crystal disk for sky chart and Milky Way

11 baguette diamond hour markers

matt dark brown alligator strap with fold-over buckle

Cartier Rotonde de Cartier Perpetual Calendar Watch - 40.5 mm Pink Gold Case - W1556217 mother-of-pearl approximately 237 hours of power40. 5 mm by 13 mm thick 18K pink gold case, sapphire back, beaded crown set with sapphire cabochon, sapphire crystal, white dial with silvered open work grid, Roman and Arabic numerals with blued hands, caliber 9422 MC automatic movement with perpetual calendar complication, days indicated by a retrograde hand, months and leap years in a counter at 12 o'clock, brown alligator strap with 18K pink gold buckle, buckle double deployant. Water resistant to