Despite its name, the perpetual calendar has not been around forever. Patek Philippe patented the movement for a pocket watch in 1889 and the venerable Swiss watch brand introduced the first ...

The Virtuoso VII Retrograde Perpetual Calendar in 18-karat white gold retails for 82,000 Swiss francs, or about $83,770; the 18-karat red gold version retails for 79,000 Swiss francs, or about ...

Measuring just 4.5 mm tall, the openworked perpetual calendar Calibre 5135 features 374 components to power day, date, month, leap year, week number, and time-telling indications.

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. But it would take almost two full centuries for ...

Patek Philippe In-Line”Perpetual Calendar Ref. 5236P-001 ©Patek Philippe. Patek Philippe reminded everyone today that there is more to this company than the stainless steel Nautilus.