Cartier Rotonde de Cartier Perpetual Calendar Watch - 40.5 mm Pink Gold Case - W1556217 Dark octagonal crown set with a

octagonal crown set with a brilliant-cut diamond

green leather strap

gold leather strap with deployant buckle

2 dark gray and navy alligator-skin strap

Cartier Rotonde de Cartier Perpetual Calendar Watch - 40.5 mm Pink Gold Case - W1556217 Dark octagonal crown set with a40. 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