Patek Philippe Perpetual Calendar Pilot this 41mm model is housed

this 41mm model is housed in a stainless steel case with a green ceramic unidirectional rotating bezel and a screw-in crown

The ste el case is paired with a fluted steel crown featuring a synthetic cabochon-shaped spinel

DIAMOND EXCELLENCE

STAYING FAITHFUL TO A386

Patek Philippe Perpetual Calendar Pilot this 41mm model is housedA perpetual calendar is like a small computer on your wrist. Think of it this way: Imagine a watch that keeps track of not only the time, but also the date, the day of the week, and the month, tells you whether its a leap year or not, and what the current phase of the moon is. Oh, and one more thing imagine it does all of this mechanically, using springs andgears, and that you only have to adjust it once every century or so. Crazy, right? Patek has