Tank de wt100022 replica

In the same horological mechanism, the Rotonde de Cartier not only measures and shows a brief moment in time but is also equipped with a feature that addresses the irregularities of the Gregorian calendar.

The Rotonde de Cartier Perpetual Calendar Chronograph is crafted in white or rose gold, and the skilled watchmakers at Cartier boldly capture the urban style in this valuable timepiece. The 42 mm case diameter and alligator leather strap fit city standards, while offering two of Cartier’s most sought-after features on the market, fully meeting the expectations for a watch. The first feature is a perpetual calendar that displays continuous time over a long period, and the second is a newly developed chronograph movement with a column-wheel mechanism that measures short periods accurately.

Since the advent of the watch, watchmakers have tried to master time in two different areas: the long-term and the short-term. Since the invention of the first pendulum clock, watchmakers have worked to create a mechanism that adjusts to the varying lengths of the Gregorian months, aiming to provide not only the time but also the most accurate calendar information possible. In the early 19th century, mechanical improvements allowed watchmakers to create timepieces that showed calendar information based on the number of days in odd and even months.

It also adds an extra day in February of each leap year. For the Rotonde de Cartier perpetual calendar chronograph, this clever calendar function corrects the irregularities in the Gregorian calendar year, requiring a complex mechanism with cams and worm wheels. Its centerpiece is a four-year rotation wheel with 48 teeth of different shades around it, which uses a probe to determine whether the current month has 31, 30, 29, or 28 days. The module also features a retrograde hand at 6 o’clock to show the day of the week, and a mechanism for the date, which is displayed on the edge of the dial by a hand. All three date displays can be adjusted with a quick adjuster built into the case, so that when the watch with the new Workshop Craft Automatic Chronograph movement is turned off, the wearer can easily reset the information on the dial.