Patek Philippe In-Line Perpetual Calendar Vegan Leather before it suddenly halted in

before it suddenly halted in 1988 with little notice

While we love Rolex’s sports models

in virtually every configuration

Dating from approximately 1986

COMEX approached Rolex with this problem

Patek Philippe In-Line Perpetual Calendar Vegan Leather before it suddenly halted inA 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 and gears, and that you only have to adjust it once every century or so. Crazy, right? Patek has