The perpetual calendar timepieces, as well as annual calendars, are a specialty of watchmaking legend Patek Philippe. This stunning masterpiece, Ref, 5496P, is a mechanical self-winding watch housing the caliber 324S QR with retrograde perpetual calendar. It is meticulously built in alluring platinum to offer retrograde date hand in an elegant arch around the dial. It also displays the day of week, the month, moonphases and leap year indicator in harmoniously 
placed apertures. It looks sleek, elegant and, at the same time, powerful on the wrist.
Somehow the eye is just drawn to this watch, with its satined silvery dial and gold applied hour hands, and wearing it is sort of like a dream. Water resistant to 30 meters, the 39.5mm case is crafted in platinum and the watch features a sapphire caseback for viewing the exquisite movement. This great complicated watch can be had for about $115,700.