Episode Technological Breakthrough Girard Perregaux Constant Power Escapement Watch Real Shot

As a real technological revolution that has shocked watchmakers, when launching a model that has accumulated years of research and development, the Hengdeng escapement movement has now become one of Girard-Perregaux’s advanced and complex series A member. On the basis of the promising model launched in 2008, it will take five years to make this new movement concept a reality. Harmonious style and important progress on the timer will become another monument in the history of watchmaking.

 Girard-Perregaux named Constant Escapement Constant Escapement to pay tribute to the founder Constant Girard-Perregaux, whose name is in keeping with the technical challenge that has plagued watchmakers for centuries-constant force By coincidence, Girard Perregaux was determined to develop a constant-power escapement technology with a revolutionary concept.
 Five years ago GP Girard-Perregaux published a constant-power escapement that was exciting. The extremely lightweight escapement was not only beautiful, but also had great potential for practical application. It is the ultimate precision of mechanical watches pursued by the watchmaking industry in the century. And stability, providing a new and reliable technical solution.

 To understand the importance of constant-power escapement technology, first return to the basic principle of mechanical watch operation: the escapement structure regularly transmits the energy of the barrel to the drive wheel system and controls the speed of the pointer operation, just like a faucet controls water Throat output is the same.
 The key to the entire power transmission process is not the escapement speed or wobble frequency, but its stability: no matter whether the wobble frequency is three or four times per second or even a thousand times, the accuracy of the travel time is ultimately tied to the wobble frequency, which can maintain stability for a long time.

 Many escapement structures have appeared in the past few hundred years, and they did not become mainstream until the introduction of Swiss lever escapement technology. Most mechanical watches still use this technology today. However, the Swiss lever escapement has a disadvantage, that is, how much power is transmitted from the barrel. It can only send the same power to the balance wheel. The problem is that the power of the barrel is slowly consumed, and the stable power is precisely timed. The key is that the power decreases, and the balance of the balance wheel also decreases. As the watch lacks power, the accuracy of the travel time is difficult to maintain. This phenomenon can be said to be a mantra that troubles the watchmaker.

 The principle of the constant power escapement system is that it can output stable and constant power to the balance wheel no matter how much power is transmitted from the barrel. GP Girard-Perregaux’s revolutionary technology is to add a very small elastic silicon hairspring to the escapement system. It can store energy within a certain limit. When it approaches a stable threshold, the hairspring appears. The unstable state, and the energy is sent out in real time in the form of wave vibration, and it repeatedly provides stable and average power to the balance wheel.
 You can understand this process visually: Hold a business card vertically with your thumb and forefinger, apply a little pressure to bend the business card into a left-opening bracket “(), and then apply pressure to the bent side to a certain limit. The business card will snap and bend in the other direction, and it will turn into the opposite right-closed bracket ”. Try everything.
 This phenomenon is called buckling. GP Girard-Perregaux hairspring experts extended it to the concept of buckling hairspring: an elastic silicon hairspring as young as six points and one hair plays the role of energy storage. The wheel has very little power, and when it reaches the critical point, it bends to the other side and sends the power back to the balance wheel. This process is not affected by the change of the spring power, and the same power is output to the balance wheel every time.
 Most of the constant power technology in the past is the average value of the total power over a period of time, but the Girard-Perregaux technology is a real-time, constant and constant-power escapement in real time, and can be measured by laboratory test methods.

 The constant power escapement of GP Girard Perregaux is a symmetrical structure, but it is not an aesthetic consideration. Instead, it can balance the power in the center of the balance wheel, so that the balance wheel can rotate completely smoothly.
 Both ends of the hairspring are fixed on the frame, and the hairspring and the frame are integrally formed by a silicon crystal. This structure can accurately connect the power contact points and bend the hairspring to the other side. Although the principle is simple, it requires extremely high accuracy in practice. Without silicon crystal technology and DRIE etching technology, it would be difficult to achieve. Girard-Perregaux collaborated with Swiss Electronics and Micro-engineering Centre in Neuchâtel, Switzerland. The watchmakers and physicists on both sides went through complex calculation procedures to determine the characteristics of the hairspring and the factors affecting the bending point, and finally decided to integrate them. The forming technology makes the hairspring vibrate as if floating in the air. Except for the moment of pushing and contracting, basically no friction occurs, so that the hairspring returns the power directly to the balance wheel.
 Elastic balance springs are the heart of a constant dynamic escapement system, vibrating at a frequency of 3 Hz (21,600 times per hour); however, GP Girard-Perregaux watches have conducted other studies on vibration frequencies, but the purpose is not to simply challenge higher speed swing frequencies.
 The two escapement wheels are quite different from the escapement wheels of the lever escapement system. The escapement wheel with a frequency of 3 Hz has three teeth and the escapement wheel with a frequency of 4 Hz has four teeth. The movement has multiple days of power and the dial has The linear power reserve display can show the efficiency of the escapement system for a long time; the movement power is provided by two parallel barrels, which includes a new patented design: the barrel cover and the pawl are integrally formed to make the best use of it. Movement space; each winding drum has two winding springs; in addition GP Girard-Perregaux has applied for registration of two patents, including the hairspring technology published in 2008, and the other for the first time in the flexible parts system (flexible system) with limit stops.
 Although the balance spring and escape wheel are most ideally made of silicon, the final escapement wheel is made of other materials; the main body of the brass movement is treated with black PVD coating to add a sense of time; the modified structure of the movement has both a three-dimensional effect and See the excellent tradition of Girard Perregaux, for example, near the dial, the brand’s classic three bridge plywood is arranged in a new layout, and the back of the movement has two arrow-shaped plywood.
 Girard-Perregaux designed this escapement to take into account future maintenance factors. The entire escapement structure is a module that can be handled by a designated watchmaker.
The first constant-power escapement
 The case design with the revolutionary constant-power escapement is ingenious and perfectly demonstrates the value of this innovative technology.
 Girard Perregaux Haute Horlogerie The first constant-power escapement watch, combining cutting-edge technological achievements and time-honored design, and strictly adhere to the brand’s traditional design style; white gold case diameter 48 mm, curved ring Beautiful.
 The dial layout emphasizes the structure of the butterfly wing frame of the constant power escapement system and the structure of the elastic hairspring. The hour dial is moved to the 12 o’clock position, with two spring drums on the left and right, and a linear power reserve display at 9 o’clock.
 Below the dial is the stage where the constant-power escapement is unveiled, swinging at a frequency of 21,600 times (3 Hz) per hour, and the new arrangement of Girard-Perregaux classic three bridge splints can be seen through anti-glare crystal glass.
 The thickness of the manual-winding movement is less than 8 mm, the case thickness is 14.63 mm, and the crystal glass back is set with 6 screws. You can see the three-dimensional movement structure and decorative beauty. It is equipped with a hand-stitched alligator leather watch Bands and discounts; belonging to Haute Horlogerie
Girard-Perregaux Constant Power Escapement
Technical specifications
Polished white gold case
Diameter: 48.00 mm
Bezel: Frosted Bezel
Table mirror: curved anti-glare crystal glass
Crown: White gold crown with GP logo
Dial: Silver-toned dial with rhodium-plated details
Pointer: Crown Princess
Case back: Crystal glass with 6 screws, hand carved
Water resistance: 30 meters
Girard-Perregaux Movement MVT-009100-0007 manual winding movement
Movement diameter: 17 1/2 legal minutes
Swing frequency: 21,600 times per hour (3 Hz)
Power reserve: about 7 days
Gems: 28
Parts: 271
Functions: hours, minutes, central seconds, linear power reserve display
Strap: Black alligator strap, discount
Number: 93500-53-131-BA6C
GP Girard Perregaux constant power escapement technology highlights
-Revolutionary concept, aiming at solving the constant power technical challenges that the watchmaking industry strives to surpass, with a new escapement system construction and design, creating a breakthrough level of precise time (including three patented technologies)
-Unprecedented precision performance: It is not restricted by the declining power of the spring of the traditional mechanical timepiece, and it outputs stable and constant power to the balance wheel, so that the swing amplitude and accuracy remain highly stable.
-Cutting-edge materials and innovative technology: The elastic silicon hairspring is only 14 microns thick, which is one sixth of a human hair.
-Innovative dual spring drum technology (patent pending), the total length of the mainspring reaches 3 meters, providing a long power reserve and a linear power reserve display
-Innovative watch design inspired by the traditional design of Girard Perregaux
Girard Perregaux: Changing the Tick of Time
The electronic instrument is used to record and analyze the ticking sound produced when the two gems of the Swiss escapement collide with the steel teeth of the escape wheel.
But for the revolutionary constant-power escapement system, the traditional electronic instrument is useless, and its accuracy must be transmitted through the laser camera.
The wonderful sound of the constant power escapement marks a new milestone in modern watchmaking technology.
CSEM: Innovation Partner
CSEM, Centre Suisse d ‘Electronique et de Microtechnique (Swiss Center for Electronics and Microtechnology) provides partners with integrated technology and manufacturing solutions based on its cutting-edge technology level; CSEM technology and GP Girard-Perregaux’s top watchmaking processes and experience It is a perfect combination, and is the best partner for Girard-Perregaux to develop highly accurate, three-dimensional miniature silicon parts.
Silicon materials are lightweight, antimagnetic, extremely low coefficient of friction, no lubrication, high elasticity, and no material fatigue. These unique material characteristics are best suited for the constant power escapement of Girard-Perregaux watches. compared to. DRIE etching technology can produce silicon parts with extremely complicated shapes, and the size is extremely accurate, providing designers with greater design flexibility.
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Montblanc Double Moon Phase Watch A Round Moon Double Emoji

Montblanc will announce the Star Series Twin Moonphase at the Geneva International Haute Horlogerie Exhibition on Monday, January 20, 2014, and hold an international press conference.

See the moon in the northern and southern hemispheres

   The Montblanc Star series is an elegant and beautiful watch series. The elegant round case combined with perfect quality and traditional decoration technology make each Star series a timeless and outstanding watch. The new Montblanc Star series dual moonphase watch, which will be launched at the 2014 SIHH watch exhibition, combines all these features, which depends on the high-quality automatic movement, analog date and special moon phase display function. The moon phase function shows the changes in the earth’s natural satellites in the southern and northern hemispheres. This extremely rare function comes from an additional complex module. This is also the only moon phase display function used by Montblanc in this model. At the same time, this watch was given the name ‘Twin Moonphase’.

         Montblanc Star Twin Moonphase

Earth’s natural satellite

  The moon phase display has always been listed as one of the most highly regarded horological complexes, and adds a few poetic qualities to the watch. For thousands of years, people in different civilizations of the world have similarly passed through a bright moon in the night sky. Express your feelings. However, most people do not know that the moons viewed from the southern and northern hemispheres have different looks. Of course, no matter where the viewer is located, the full moon is the full moon, the first quarter moon is the first moon, and the profit and loss of the moon phases always change sequentially. However, the profit and loss of the moon seen in the southern hemisphere, but in the northern hemisphere, are like inverted moon phases. When viewing the first quarter moon in the northern hemisphere, its crescent is always curved to the right, while in the first half of the southern hemisphere, the crescent moon is curved to the left; the same is true for the second quarter moon. The southern hemisphere below the equator is curved to the right. Most moon phase timers show the moon phase profit and loss from the northern hemisphere. This is because the invention of clocks and moon phases is located in the northern hemisphere, and most of the world’s population lives north of the equator.

Moons in the northern and southern hemispheres

   The Montblanc Star series dual moon phase watch has a very different moon phase display function, because this watch also considers the wearer living in the southern hemisphere, elegant moon phase display function with a unique shape of the display window (imitation of the northern hemisphere winding moon Or the geometric shape of the second quarter), and the pointer design shows the age of the month in days. The other end of the slender diameter pointer is exactly opposite the traditional moon phase displayed on the lower half of the moon phase small dial, which refers to the moon phase currently viewed in the southern hemisphere.
The elegant small dial is located at six o’clock, and is meticulous in detail design. Around the small dial, the moon age is counted in days. The upper half of the space is used for moon phase display, and is matched with a uniquely shaped window. The golden moon phase in the window slides on the dark blue background and changes accordingly. The shape shows the moon phase profit and loss seen in the northern hemisphere. The design of the lower half is decorated with a pattern resembling the Montblanc hexagonal white star logo, surrounded by different moon phase totems, showing the moon phase profit and loss in the southern hemisphere.

Hexagonal White Star Radial Guilloche Faceplate
The dial of this watch is decorated with a guilloché pattern – a classic element of haute horlogerie design. This is also the most symbolic and unique radial hexagonal star dial of the Montblanc Star series, which later evolved into a Montblanc-like on a small moon phase dial. Logo outline. Guilloche pattern extends to the hour markers on the outermost circle of the dial. There is an asymmetrically arranged small date window between one and two o’clock. At the ten o’clock position, rectangular ‘Montblanc’ is printed. And ‘Automatic’ means that this model uses a self-winding mechanical movement. The innovative date display arrangement, 15, 30, 45, 60 minutes and 31-day scale with red highlights and the red crescent on the top of the date hand are all very unique. Montblanc Star series unique black Arabic numerals and silver-gray background show a sharp contrast, blue steel hands also show a strong contrast with the background color, easy for wearers to read time: including willow-shaped hour and minute hands, stick-shaped second hand At one end is the Montblanc emblem for balance), a slender straight moon phase moon-age hand, and a slender date hand (with a bright red crescent on top).

Shiny stainless steel case

   This model adopts a special polished stainless steel case. The 42mm diameter and 12.7mm height are the most widely used proportions today. The dial is protected by an anti-glare sapphire crystal glass. The screw-in caseback is made of transparent sapphire crystal High-quality mechanical movement MB 4810/913 can be seen through the sapphire crystal glass. The self-winding movement is equipped with a special module from Montblanc dedicated to this model to display the dual moon phases. The asymmetrical pointer date inherits the top qualities of Swiss watchmaking. The vibration frequency reaches 28,800 times per hour (4 Hz). If it is not worn for a long time, you can rotate the crown with the Montblanc logo and manually wind the movement. The date and moon phase display can be adjusted via the two day-adjustment buttons on the side of the case. The strap of this watch is made of large grain crocodile leather and is fixed by a unique three-layer folding stainless steel buckle, which is convenient for the wearer to quickly and easily wear or remove the watch.