The Perpetual Calendar Represents the Height of Watchmaking. So What Is It?

Then there's an annual calendar, which is tuned to the 12-month calendar and nails the months lasting 30 or 31 days-but requires a yearly reset once the calendar flips from February Buy a perpetual calendar now and it won't need a reset until the year 2100 Thomas Mudge invented the very first perpetual calendar in 1762-the gold pocket watch that contains it is currently on view at the British Museum.

Patek Philippe first made a commercial perpetual calendar wristwatch in 1925 The perpetual calendar is the height of haute horlogerie, the French term for highest-end watchmaking that includes minute repeaters and tourbillons Typically, it will take even the most skilled watchmakers over a month to assemble everything necessary to make a perpetual calendar work.

Out of all the wonderfully superfluous things you can get on a watch, the perpetual calendar is certainly at the top of the list. . Source