A perpetual calendar is one of the most special features in a watch. The mechanism ensures that the date is always correct. You do not need to adjust anything, even in leap years. This makes it a technical masterpiece and a practical choice for any wearer.
A watch with a perpetual calendar automatically recognizes how long a month is. Whether it is a short month, like February, or a long month like July. Even in leap years, the extra day in February is added automatically. Only in an exceptional year, such as 2100, is a manual adjustment required.
Inside the watch is a clever system of gears and levers. These work together to correctly display each month and year. The most important part is a gear with 48 steps. This gear rotates slowly and makes one step per month. Because of this movement, the watch knows exactly how many days each month has. For leap years, there is an additional mechanism that adjusts the calendar.
Perpetual calendars have been around since the 18th century. The first ones were designed for pocket watches. One of the first designs came from Thomas Mudge in 1762. Today, these calendars are often used in luxury watches. They are a symbol of craftsmanship and precision.
Watches with perpetual calendar are loved by connoisseurs and collectors. Brands such as Cartier, Patek Philippe, Audemars Piguet and Jaeger-LeCoultre make models with this feature. These watches combine technical perfection with stylish design. They are reliable, timeless and suit any occasion.
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