Since 2004, every time we report to Tag Heuer TAG HEUER, we will always care about V4, and TAG HEUER will report the development progress every year; but honestly, in the past five years Our expectations have become wait-and-see, so even if V4 has been officially produced today, it still feels unreal. The so-called ‘Belt-drive = transmission belt’ is the core concept of V4; from the principle that the mechanical watch structure is established-the meshing between gears, it is completely rethought. ‘Think Again’, this is the most important and lacking attitude of R & D.

From the principle of mechanical watch structure, the meshing between gears is completely rethought

When interviewing TAGHEUER President Jean- Christophe Babin at the Basel in April, although he enthusiastically introduced their latest Monaco Twenty-four and Aquaracer, the editor always couldn’t help distractingly peeking into the corner of the dial on the table. That V4. At that time, Babin said that the mechanical part of the V4 was completed, and only the decorative part was left. It is scheduled to be available by the end of 2009. This check is now cashed, but if you look back, this is actually a forward check that Zhang has spent five years cashing. Since 2004, we have always been concerned about V4 every time we reported to TAG HEUER, and TAG HEUER has been polite to report the development progress every year; but honestly, our expectations have become wait-and-see in the past five years, because I have waited too long, and the project itself is too difficult. Even the watchmaker Philippe Dufour who once participated in the project clearly told the president Babin, ‘To make V4 products cost too much money, it takes too much patience. ‘Because the whole atmosphere has become so conservative, when the editor really got the news information of the V4 listing, the touch in his hand was actually unreal.
In fact, Monaco V4 was just a pure concept watch at the beginning of the publication, and there was no intention of a marketer. However, after publication, V4 swept through all watch awards, design awards, and professional media evaluations that year. Such a enthusiastic response finally made V4 Moved. From the concept table to the commercial product, there are a lot of things to be corrected. If the V4 of the early 2004 is compared with the current one, it looks like two watches except for the overall impression. In terms of actual structure, the first generation used 13 transmission belts. After evaluating the transmission efficiency and life, the product version only used 5 transmission belts; the original escapement used Dufour’s Simplicity screw balance. Although the product version was modified It has become an ordinary three-spoke light balance wheel, but the escapement wheel is linked to the four wheel trains by a transmission belt, which has a higher technical density. From this point of view, the five-year development of V4 is very solid.

However, to this day, the editor still does not know how to look at this watch; the transmission belt is indeed a subversive design, but considering the cost, it is obvious that it cannot replace the traditional gear transmission, and even TAG HEUER itself should also It will only be used on a few limited tables, and the life of the transmission belt, warranty, and other issues will take some time to observe. However, the editor still likes the value symbolized by V4. It is the spirit of ‘Think Again’, which is the most important and lacking attitude of R & D.
Feature one: Belt-drive = drive belt
The so-called ‘Belt-drive = transmission belt’ is the core concept of V4; it is not the heart of the mechanical watch structure like the improvement of the escapement, but it is the principle established from the mechanical watch structure-the meshing between gears And rethink thoroughly. The rethinking actually refers to the transmission mode of the automobile engine; two gears are linked with one transmission belt instead of the direct meshing of the gear teeth. There is no problem of friction between the gears without direct contact, and the two gears located at the two ends of the base plate can also be linked by a transmission belt. The large-scale gears or multiple intermediate wheels are not needed, which makes the arrangement of the gear train more free.

Feature 2: Special rubber as thin as human hair
Of the five transmission belts of the V4, two are on the back of the case and are responsible for the power transmission from the winding mechanism to the barrel. Three are on the front and are responsible for the transmission between the wheels. The drive belts used in the two groups are not the same. The material of the transmission belt is Polyether Block Amide, which is a kind of rubber, but the elasticity, shock absorption and fatigue cycle are stronger than ordinary rubber; the diameter of the transmission belt is only 0.07mm, thinner than ordinary human hair, and the diameter is 0.05 in the middle. mm Micro Wire, to increase the strength of the belt.
Feature 3: linear winding mechanism and four barrels
The winding mechanism of the V4 is a 12-gram tungsten weight, which winds the mainspring in a linear motion between two pairs of barrels. This linear winding mechanism was indeed quite new at the beginning of its publication in 2004. However, the development period of V4 was too long, which caused Tourbillon Glissiere of HARRY WINSTON to be the first to be commercialized in 2007. The two pairs of barrels are independent, and each of the two barrels is connected to the two barrels with two transmission belts on the back of the case that are responsible for power transmission. In addition to the two barrels, the transmission belt will bypass a pulley fixed with eccentric screws. Changing the position of the pulley with eccentric screws can adjust the tension of the transmission belt.

Feature 4: Transmission belt linked to the escape wheel
In order to imitate the V-shaped cylinder of the engine, the two pairs of barrels are tilted out at an angle of 13 degrees; the two barrels above are linked through the base plate to a car on the front. The two gear wheels tilt slightly. The power was transmitted from Yifan and Erfan under the central splint to Sanfan at three o’clock. The Sanfan and the four cars under the small seconds began to be linked by a transmission belt. After that, the four cars to the intermediary at six o’clock. A transmission belt was also used for the linkage between the wheel, the intermediary wheel and the escape wheel. As for the drive belt connected to the escape wheel, the action is the most violent, and it is unknown whether the belt is special.

Feature five: ‘V4’ is a movement and a watch
V4 is actually no difference between ‘calibration’ and ‘watch’; the movement is a watch, and the watch is a movement. There is no independent movement chart in the official data. From the point of view of the ‘watch’, V4 can be regarded as a skeleton watch, the front of the splint has hairline patterns, and the chamfers are polished; if you play a little imagination, V4 will actually remind the editor of CREDOR’s small self-sounding watch . Mirrors extending from the front to the side have been available since the first generation, and the same design is also applied to the Monaco LS and Twenty-four. At present, the factory does not deny that Belt-drive may also appear in other series such as Carrera in the future.

Monaco V4

950 platinum / V4 self-winding movement / hours, minutes, small seconds display / sapphire crystal, transparent bottom cover / diameter 39.0 × 48.9mm / limited to 150 pieces