In-depth Evaluation Of Cartier Calibre Multi-time Zone Watch

People have long realized that the sunrise and sunset times in different regions are different. When distance is no longer an issue for people to communicate, the issue of time is highlighted.

Cartier Calibre de Cartier Multi Time Zone Watch
必备 Traveler Essentials-Cartier Calibre de Cartier Multi-Time Zone Watch
People have long realized that the sunrise and sunset times are different in different regions, such as when Beijing is 12 noon and London is 4 am. When distance is no longer an issue for people, the issue of time is highlighted. In 1884, the International Meridian Conference was held in Washington, and the world was officially divided into 24 time zones. Countries have since adopted world time. At the same time, watchmakers are fiercely competing to develop watches that can display time in multiple time zones. Cartier is no exception. The Calibre de Cartier multi-time zone watch, which was unveiled at the 21st Geneva Watch Fair, is a leader in this field. This is a veritable must-have watch for travellers, and a sweet gift from Cartier to business travelers. This watch has three highlights:
One of them is the clear and easy to read multi-time zone display.
Calibre de Cartier multi-time zone watch provides all practical information for travelers. The sun and moon symbols on the dial below the center of the watch indicate the time of departure and the main hand of the watch indicates the time of destination.
The second highlight is the city dial on the side of the watch.
目的地 You can enlarge the destination display through the magnifying glass on the side, this design can avoid the inconvenience caused by the dial because of too many instructions. As long as you press the turn button, you can read the time of 24 reference time zone cities. Each time you press the turn button, you can display each city and the corresponding time, and the corresponding time between the reference city and the travel city.
的 The last major innovation of the Calibre de Cartier multi-time zone watch is the ability to switch between summer and winter time. During the five months when daylight saving time is implemented, you can switch between daylight saving time and winter time by simply reading different levels of time on the city dial.
Such convenient and clever functions are derived from the powerful core of Calibre de Cartier watches-9909 MC automatic mechanical movement. The 9909 MC movement is completely developed and manufactured by Cartier Workshop. It is the first movement with multi-time zone function in Cartier’s advanced watchmaking series. It is also a movement specifically designed for travelers with multi-time zone and city display. Dial, (departure) day / night and time difference indication function.
Not only the inner core is strong, the shape of the Calibre de Cartier multi-time zone watch is even more impressive. It has all the classic elements of Cartier watches: Roman numerals, ‘minute track’ scale, blue steel hands and convex round sapphire. The 45 mm case is extremely male-oriented, and the raised bezel on the case is soft and smooth, in sharp contrast to the strong case. It slopes naturally at 28 degrees to the dial and extends up to 120 dials. The fine details are reminiscent of clock gears. The bezel extends to the dial, the huge Roman numeral 12, the crown shoulders and the side magnifying glass at 9 o’clock are impressive.

Rotonde de Cartier Astrorégulateur celestial constant center of gravity device watch
Challenge gravity-Rotonde de Cartier Astrorégulateur celestial constant center of gravity device watch
Gravity is the foundation of human survival, but it is also the culprit that causes the time error of the watch. Gravity can shift the center of gravity of the balance with the hairspring, causing the watch to be inaccurate. Controlling gravity has always been one of the biggest challenges for watchmakers. Seeing ‘challenge gravity’, 80% of our minds think of the word ‘tourbillon’. Yes, the tourbillon is the oldest and most common way to overcome this problem. The tourbillon frame rotates once a minute, and it passes through all the centers of gravity by rotating as much as possible, and offsets the influence of gravity to avoid the running deviation when the watch is in the vertical position. So, besides the tourbillon, is there any other way to solve the effect of gravity on the watch?
For this question, Cartier gave a perfect answer in 2011, that is, Cartier Rotonde de Cartier Astrorégulateur celestial constant center of gravity device watch. Abandoning the tourbillon, this watch uses a new method to challenge gravity. This is the 9800 MC movement developed by Cartier. So what’s so special about the 9800MC movement?

9800 MC movement
First, it is an alternative solution to the problem of gravity.
9800 MC movement is a movement that can replace the tourbillon. Since the isochronism of the vibration depends on the regularity of the vibrator frequency, and this regularity will be disturbed by the gravity of the earth, the ideal situation is to ensure that the vibrator always has only one center of gravity regardless of the vertical state. Based on this principle, Cartier conceived an innovative anti-gravity system, that is, using the ‘rotor’ component to return it to the same vertical position every time. On the 9800 MC movement, the escapement, the rotor and the small second hand are driven by the rotor, and the rotor can always return to the same position, thereby avoiding the adverse effect of gravity on the timing when the watch is in the vertical position. By adjusting the action of the oscillating weight in this fixed position, the watchmaker was able to make the working platform of the Astrorégulateur celestial constant center of gravity device movement, no matter what vertical state, the gravity can avoid interference with the timing. This is a major innovation in watch design. Compared with the simple tourbillon frame, the rotor can drive and carry five times more parts than the tourbillon frame.
Second, its differential technology system ensures continuous and accurate timing.
Wrist movement brings different strength to the escapement. However, these powers must be corrected to ensure that the escapement runs at a constant speed, which is a necessary condition for accurate watch timing. Therefore, senior watch designers invented a system consisting of two differentials that converts the power transmitted by the wrist to a constant speed, ensuring the regular movement of the second hand with the rotor, and especially ensuring the accurate timing of the watch.
Third, it is equipped with platinum inertia weight can be used to automatically wind the movement.
The rotor is equipped with a platinum inertia weight, which can return to the same position by its own weight to ensure automatic winding. This is a unique two-way winding mechanism: the movement can be wound no matter which direction the rotor is rotated.
To complement this unique movement, Cartier equips it with a 50 mm diameter niobium titanium case. Niobium titanium weighs only 55 grams and is comfortable to wear. Although the freestyle escapement makes the watch more susceptible to collision damage, the niobium titanium case can offset the impact of the collision as much as possible. Because of the physical properties of the niobium-titanium alloy, severe impact can be converted into the same energy, but it is softer and more cushioned. Previously, niobium-titanium alloys were only used on ID One de Cartier concept watches.

Calibre de Cartier Astrotourbillon
Powerful, lightweight, atmospheric and comfortable-Calibre de Cartier Astrotourbillon
This unique watch has a large diameter of 47 mm to offset its weight with extremely lightweight titanium, and the surface of the case and movement are carefully modified. A masterpiece of Cartier’s fine watchmaking, limited edition of 100 pieces.
AsThe Astrotourbillon celestial tourbillon movement, which was introduced in 2010, was developed by Cartier Workshop for five years, and has now become the source of power for the Calibre de Cartier watch series. The 9451MC movement has a tourbillon frame with built-in escapement and balance springs. Like a traditional tourbillon, this frame is driven by a third gear in a gear transmission system. The escapement wheel system relies on the escapement pinion to rotate around the fixed second hand gear (the fourth gear in the gear transmission system).
As can be seen from the name of this watch, Astrotourbillon’s celestial rotating tourbillon is his most watchful part. Like the climax of a wonderful movie, it must be missed. This astronomical tourbillon, called Astrotourbillon, stands out because of its several unique characteristics.

Calibre de Cartier Astrotourbillon
First of all, its frame is located in the center of the movement, so a special axis of rotation is required. For this reason, from the dual barrel of the movement to the display of the hour and minute hands, the entire gear transmission system must be redesigned.
Secondly, the balance wheel and escape wheel of the Astrotourbillon astronomical tourbillon are not set on the rotation axis of the frame, but on one side of the frame, which is aligned with the rotation axis. It is this special design that creates a unique visual effect for the watch.
Finally, the entire tourbillon frame is located above the movement in the middle of the two dials, instead of being directly integrated with the movement like a traditional tourbillon. The central design of this tourbillon is unprecedented, and it has the dual effects of aesthetics and technology. Visually, the slender frame rotates around the entire dial every minute, and the eccentric balance bridge is designed in the shape of an arrow to indicate the number of seconds. Technically, to ensure the balance of the frame, a platinum balance weight was added on the other side of the frame, hidden under the central dial. In order to effectively control the inertia generated during rotation, the weight of the frame must be limited (the total weight of the frame is 0.39 grams, excluding the weight of the balance weight). Therefore, lightweight titanium is used as the material.