Rotonde de Cartier perpetual calendar chronograph brings a very precious luxury experience: in the same clock device, not only can measure and display a short moment, but also equipped with the ability to overcome the irregularity of the Gregorian calendar year Machinery.
The Rotonde de Cartier Perpetual Calendar Chronograph is crafted in white gold or rose gold, and the watchmakers at Cartier Workshop boldly condense the urban style into this elaborate and precious watch. The 42mm case diameter and crocodile leather strap fully meet the standards of urbanites. At the same time, it is equipped with two of Cartier’s most popular complications in the market, which fully meet the expectations of a timepiece. The first display function of the watch is a perpetual calendar that can display long-term continuous time, and the second is a newly developed chronograph movement with a column wheel mechanism that can accurately measure a short time according to demand.
Length of measurement time
Since the advent of timepieces, watchmakers have sought to master time in two distinct areas: long and short. Since the invention of the first pendulum clock, watchmakers have tried to create a device to cope with the length of each month in the calendar year, which not only provides time display, but also provides as accurate calendar information as possible. In the early 19th century, a series of mechanical improvements allowed watchmakers to create timepieces that displayed calendar information based on the number of days in the odd and even months, while adding one day in February every leap year. In the Rotonde de Cartier perpetual calendar chronograph, this clever calendar function is used to correct irregularities in the Gregorian calendar year, requiring a complete set of complex and sophisticated mechanical structures composed of cams and snail wheels. Its core component is a gear that rotates once every four years. There are 48 teeth of different shades around the gear. A probe is used to distinguish whether the number of days in the current month is 31, 30, 29, or 28. This module also has a retrograde hand at 6 o’clock to display the day of the week, and a mechanism for displaying the date, which is displayed on the edge of the dial by a hand. The above three calendar displays can be adjusted by the quick adjuster embedded in the case, so when this watch equipped with a new workshop-finished self-winding chronograph movement stops operating, the wearer can easily reset it. Set the information on the dial.
Cartier workshop refined chronograph movement
This exquisite mechanical assembly has previously existed in the Cartier watch series, and is often called a modular movement by watchmakers, and has been transformed into a new 1904-CH MC workshop refined movement. Another major innovation of this watch is a flexible linear reset lever, which can reduce the pressure on the hands during the reset operation. Nowadays, it is vital to ensure flawless accuracy of the timepieces used to measure short time intervals, so the master watchmakers at the workshop of La Chaux-de-Fonds chose to use the latest generation of vertical The clutch device ensures that the hands do not jump when the timing starts and the timing operation will not interfere with the movement of the movement.
Summary: This new self-winding mechanical chronograph movement contains a number of major technological innovations that have greatly improved accuracy and performance. The movement is carefully hand-polished according to the highest standards of fine watchmaking. The oscillating weight is also carefully engraved and equipped with two sets of barrels to increase torque and provide a 48-hour power reserve for the watch.
Geneva International Haute Horlogerie 2013: