"Magnetic" has been a problem that has affected the accuracy of the watch's travel time for centuries, and it is also a difficult problem for watchmakers. There are more magnetic fields in life than ever before, and the permanent magnetic force is getting stronger. The magnetic field, which is invisible to the naked eye but constant, has a great impact on the material strength of the brand.
Omega watch with the world's first anti-magnetic movement, can resist strong magnetic fields of up to 15000 Gauss or more; without the limitations of the inner case, the anti-magnetic watch equipped with this movement can be equipped with a calendar display function, or a sapphire watch Back, let people enjoy the beauty of the movement of the precision movement.
Although we can't see the magnetic field, we are surrounded by it from time to time. Therefore, watchmakers have to deal with the magnetic problems of watches. Although we can't see how the mechanical watch is magnetic, it is completely conceivable that some of the internal metal parts are easily interfered by the magnetic field, and the magnetization is stuck, so the hands are also "magic" to move fast or not. A more professional explanation can be obtained in the watch expert's mouth: "The iron-containing parts inside the mechanical timepiece are sensitive to temperature and magnetic field, especially the hairspring. The magnetic field can change its elastic modulus and deform under the action of the magnetic field, resulting in additional stress. When the magnetic field can cause the hairspring to stick, affecting the time."
Magnetization is often the cause of malfunctions in mechanical watches. Whenever someone doubts that "my watch is very inaccurate or does not go", the table friends often sympathetically replied: "It may be magnetic, go to the repair station to eliminate the magnetism." This answer is like The computer is abnormally "try to restart" and it is obvious that it has the time and worry of having an anti-magnetic watch.
Panerai's new Luminor 3-day power reserve titanium anti-magnetic watch. The case has a unique structure, and the inner case under the dial uses the highest purity soft iron to completely cover and isolate the movement, reflecting the magnetic field waves to other places, making the watch anti-magnetic ability up to 40,000A/m.
Antimagnetic "golden bell"
Before and after World War II, the use of electrical appliances became more and more frequent, and watches became more and more susceptible to electromagnetic influence. The first to bear the brunt is the pilots, the dispatchers, and the electromechanical engineers who must be in close contact with electromagnetic items for a long time in a small space, and the magnetization of the watch's hairspring is inevitable.
The 10,000-country pilot series TOPGUN naval air combat chronograph watch, the soft iron inner shell protects the movement from the influence of the magnetic field effect, the screw-in crown, the glass mirror is assembled stably, and can withstand the sudden drop of air pressure without loosening.
In the 1930s, IWC solved this problem well when developing aviation watches, and made great achievements in the history of timepieces. The original anti-magnetic method uses an inner case made of soft iron. This technical feature is also the origin of the name of the engineer watch family, because engineers work more often in the electromagnetic radiation field and belonged to IWC in Schaffhausen in the 1950s. The potential customer of the earliest engineer watch. In order to ensure anti-magnetic, the case bottom plate, case ring and dial are made of soft iron, and the electromagnetic radiation around the movement is transferred. This is like adding a “golden bell†to the watch. Under certain magnetic field strength, the metal parts can work safely in this protection.
In addition to the possibility that the "engineer" who is trapped in the Jedi needs anti-magnetic, the pilot and military watch will also do some diamagnetic treatment due to their special requirements. IWC is the Mark 11 watch made by the Royal Air Force and is the most famous watch in its pilot series. The movement is also equipped with a soft iron inner shell. Because of its sturdiness and precision, this watch stands out among other products of the same type. Today, it is still one of the collector's favorite products, and its status is lofty.
Omega's iron tyrants are also written in the anti-magnetic history. The name, which sounded tough and domineering, was first introduced in 1957, when it was designed specifically for scientists and technicians working near high currents. This "Golden Bell" was upgraded to a double-layer anti-magnetic case to ensure that the movement is not affected by the power magnetic field. Since then, the iron tyrants have always been the anti-magnetic classics for the watchmaking world. Omega has made its reputation to the height of its contribution to the human space industry half a century ago.
New material anti-magnetic weapon
Although the anti-magnetic soft iron cover protects the mechanical movement is the easiest and most effective way to deal with the "magnetic" problem in the watchmaking world, this method has great limitations, not only cannot cope with the magnetic force enhanced by the permanent magnet, but also from an aesthetic point of view. These methods also make it impossible to enjoy the beauty of the movement. For some fine-grained brands, they would rather spend more on improving the material to achieve anti-magnetic effects.
The Lange watch singer Richard Lange first discovered the effect of enamel on the nickel steel balance spring. Base metals not only reduce the sensitivity of the hairspring to magnetic and temperature, but also increase the elasticity and hardness of the hairspring. In 1930 he published "The Metal Alloy of Watches and Springs". In 1931, Reinhard Strausmann obtained his own patent on the basis of the Lange patent: non-volatile oxidation-resistant materials.
The exploration of the watchmakers on the anti-magnetic road has never stopped. In 1989, IWC used an engineer's watch of the balance wheel assembly without iron and nickel materials to perform a magnetic resistance test of 3.7 million A/m. The hot non-metallic material silicon is also the best anti-magnetic material in general. The natural physical properties of silicon make it completely unresponsive to the magnetic field, but its research and development results are only in the hands of several big brands.
The Rolex Milgauss watch can withstand 1000 Gauss (80000A/m) and successfully solve the anti-magnetic problem. The first line of defense is fitted with a magnetic shield made of ferromagnetic alloy in the enamel case. The second line of defense is a PARACHROM hairspring made of a new alloy that not only has diamagnetic resistance, but also resists temperature changes.
With the improvement of modern metallurgical technology and metal manufacturing technology, watchmakers from the appearance of watches (magnetic soft iron sleeve) and various internal movement parts (magnetic anti-acid alloy, blue steel hairspring, silicon hairspring, cobalt nickel hairspring And so on) have made many improvements. For example, Rolex MILGAUSS uses its own special rare earth Parachrom nickel-cobalt blue steel hairspring, combined with a fully sealed anti-magnetic soft iron cover with almost no openings, making the anti-magnetic technology upgrade from a simple "magnetic anti-magnetic soft iron sleeve" to a technical level "magnetic anti-magnetic" The development of the escapement system. Raising the anti-magnetic function to 100000A/m is a model for anti-magnetic watches.
Befriending the magnetic field
Antimagnetic watches have more and more practical value, but in terms of the “Ultimate Antimagnetic†watches such as the IWC engineer series and Rolex MILGAUSS, they have far exceeded the need to prevent daily magnetic fields. They are the fans who pursue the ultimate. "toy". The game between the watch fans and the magnetic field is not limited to getting rid of the influence of the magnetic field. The watchmaker makes more clever use of the magnetic field, making the function and presentation of the watch more interesting and diverse. At this point, the watch and the magnetic field have turned into enemies.
The Breitling Super Ocean M2000 Chronograph, the first watch that can accurately chronograph at an underwater depth of 2,000 meters, can be achieved with the help of a magnetic button.
The Breitling Super Ocean M2000 Chronograph is such a representative. With the brand's exclusive patented magnetic button device, the wearer can time the metal through the inner metal of the case without worrying about the strong pressure on the case, allowing it to accurately control the timing function at an incredible 2000 meters.
The Breguet Classic LASUMICALE music watch uses the magnetic adjustment device pioneered in watchmaking history. This patented system with magnets and magnetic field control in the iron shell successfully eliminates the noise generated by the operation of the regulating device.
The Breguet Classic LASUMICALE music watch uses a magnetic field to enhance the listening effect. This watch uses a magnetic regulator. The adjuster is surrounded by more than 20 magnet pieces. The radius of rotation of the adjuster changes under the control of the magnetic field. Constant, no longer touch the wall tube, so there is no wear and no noise.
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