Anti-magnetic

Anti-magnetic principle Anti-magnetic watch does not mean that all parts of the watch are anti-magnetic, just refers to some of the major components, such as balance, gossamer, clockwork, etc. are made of anti-magnetic material. According to international standards, if the table in 4800A / m magnetic field can continue to run, and the maximum error of the day after the test does not exceed 30 seconds to meet the anti-magnetic standard. Although anti-magnetic watch has more and more practical value, but for some "ultimate anti-magnetic" watches, in fact, has far exceeded the need to prevent the daily magnetic field, they have become those dedicated to the pursuit of the ultimate table fans "toy" . Anti-magnetic watch standard When the watch accidentally in a magnetic field strength of 4800A / m, the residual effect of the quartz watch does not exceed 1.5 seconds, the mechanical men's watch (movement area greater than 314 square millimeters) the remaining effect of not more than 30 seconds, mechanical watches remaining Effect does not exceed 45 seconds, this table can be called anti-magnetic watch. Magnetic anti-magnetic history of development In the 19th century, watch governor, basically, made of steel, therefore, they are extremely susceptible to the magnetic field. The first major precaution is to place the pocket watch in a wax-coated white iron empty box. Although this box can be very effective protection, but he has a big drawback, that is, every time you need to open to report time. The first 25 years of the twentieth century witnessed major changes in this area. In 1920, Charles-Edouard Guillaume, winner of the Nobel Prize in Fleurier, Switzerland, invented an iron-nickel alloy that replaced earlier steel alloy balance springs and greatly increased in three areas The reliability of the watch: 1, not susceptible to magnetic effects. 2, moisture is not easy to rust. 3, less susceptible to temperature changes (this is Guillaume's main research direction). The use of this alloy and stainless steel in a watch case makes the watch less susceptible to the effects of magnetic fields in homes or in common industrial settings. That gold? Unlike its "close relatives", the watchcase made of gold can not protect the watch well, not under the influence of magnetic force. Therefore, the smartest way to do this is to equip the chronograph movement with a paramagnetic cover made of iron and a highly permalloy or permalloy. It is usually not for aesthetic reasons to take this precaution. A gold watch with a protective watchcase does not look so polished, making it harder to sell. Maybe, one day, watchmakers will pay more attention to this issue. At the same time, wearers should be more careful not to expose their timers to magnetic fields. Magnetically shielded form is currently used most of the built-in soft iron inner shell, in order to achieve a higher anti-magnetic effect, the famous world pilot series, Rolex Mileguass type. The highest level of anti-magnetic watch for the Omega launched in 2013 15000 Gaussian anti-magnetic watch, movement components made of anti-magnetic material, can withstand the magnetic field strength of more than 15000 Gauss. Daily anti-magnetic watch so, at home magnetic risk where? No magnetic field can be found in loudspeakers, sound systems, televisions and radios, so we should avoid putting watches on these things. But for those watches, the more insidious threats are found in the magnets of refrigerators and cupboard doors. Even a short exposure, enough to magnetize the gold watch. Caution is a never-ending maxim when you wear any of these timepieces in your kitchen. Although a piece of magnetized watch, as mentioned above, can be demagnetized, the whole process is very tedious. Because you want to do a good job, you have to dismantle the watch and demagnetize each piece of steel. Mechanical watch how magnetic 1) Do not open the back cover, so as to avoid dust, fiber, water vapor and other invasion of the machine, affecting the watch's normal travel time; 2) every day must be on the regular winding, regular winding on the clock to keep the watch timekeeping Accuracy; 3) pull out the handle can be allocated to the needle, dial-up can be allocated to dial, call the needle after the head will be pushed onto the position, otherwise it will cause the watch machine stopped; 4) ,keep clean. Watch if not, should be placed in a dry, no mothballs place, from time to time on a winding, to prevent the solidification of lubricating oil, affecting the travel time; 5) In the case of strenuous exercise or vibration, the watch should pick 6) waterproof watch in normal circumstances to prevent air intrusion of water vapor, not absolutely not into the water, do not wear table swimming, showering, hand washing, washing clothes should also be noted; 7) Although the watch has a certain anti-magnetic properties, but still need to avoid contact with the strong magnetic field to prevent parts magnetization, causing the watch machine travel time changes; 8) Do not make the watch with acid, alkali, salt and other corrosive liquids and gases contact for a long time Sweat erosion will make the case rust, the summer when using the watch, it is best to use cushion pad separated from the arm; 9) the watch has some speed error, as long as the error does not exceed the standard, do not often turn the speed needle; 10) If you do not understand the repair technology, do not arbitrarily dial the table parts or refueling, so as to avoid accidental loss.

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