Modified on: Thu, 8 Sep, 2016 at 6:45 PM. That’s ample protection from everyday items like a typical hair dryer, but a fraction of the protection needed against a modern MRI machine, which can emit a magnetic field of 30,000 gauss. Advertisement. If your watch is running fast or slow, this can be a sign of magnetism. Yes Home; All About Magnets; All About Magnets Magnet Glossary. That’s far more than 600 gauss. Real – To test if your Rolex is genuine, you would … Waterproof ability – only for 3 seconds in water. Most watch repair facilities have a demagnetizing machine, which takes just a few minutes to remove the watch’s magnetic field by quickly alternating its electrical current. Exposing your watch to strong magnets such as in speakers, fridges, etc will magnetized the steels inside your watch.. If the compass hand moves as a result, your watch is magnetized. In February, the International Organization for Standardization, an independent group based in Switzerland that issues guidelines on a broad range of products, published a report on watch magnetization, something it first examined in 1973. Using a Nitric Acid Test Purchase gold-testing kit to get the acid you need for the test. Inadvertently magnetizing your watch is easy: Placing it on top of your phone on a nightstand can do it, or simply having your wrist too close to someone whose purse has a particularly strong magnet clasp. “Everything’s got a strong magnet these days, even things like home audio, hi-fis, the loudspeakers on your computer,” said Justin Koullapis, a co-owner of Watch Club, a boutique in London’s Mayfair neighborhood, and the technical editor of The Horological Journal, the British Horological Institute’s monthly publication. The magnetic field now given off by the watch will move the compass needle … “Today we have the highest level of magnetic fields around us,” said Stefan Ihnen, associate director of technics, research and development at IWC Schaffhausen. Place one on top of the silver item and the ice cube on a regular pan. If the normal rotation of the motor is affected by strong magnetism from the outside, the timepiece may also stop, or lose or gain time. And then? Turn on the compass and then slowly bring your watch closer to the compass display; if the heading changes considerably in response to your watch getting close to the compass, your watch is magnetized. Or, inexplicably, it stops entirely. “Don’t blame the watch.”. If the watch is still magnetized… One hallmark will generally tell us the metal content of a piece, and the other (if there is another) will tell us either the country of origin, designer, or manufacturer. How can I tell that my watch is magnetized? Or 10 minutes slow. Just go to a big box store like Walmart or K-Mart, and have them run your watch across the de-magnetizer that's built into their register counters. At the risk of pitting your personal gadgets against one another, in a kind of crazy electronic “Toy Story” scenario, the high tech tools we have come to rely on aren’t entirely compatible with traditional timepieces. If that necklace leaps to the magnet, your significant other has some explaining to do. It could be your smartphone’s fault. What happened? All three are possible.”. ; Plug the Apple Magnetic Charging Cable or Apple Watch Magnetic Charging Dock into a USB power adapter. But quartz watches can be affected, too, as they often have steel hands that are sensitive to magnets. “It would have to be really close,” Mr. Koullapis said. Place it next to a compass and you may see the needle turn towards your watch. If your watch has ever done this, you know just what I mean. Use a neodymium magnet. To make sure magnetism is the culprit, check for its presence in your watch with either the Lepsi iPhone app or a compass. What you want to do know is to bring it to a watchmaker or specialized dealer of mechanical watches as he will own a demagnetizing device. To avoid problems with magnetism, don't place your mechanical watch on top of your TV set, your stereo speakers, near a strong electric motor, or anyplace else where strong magnetic exposure is a possibility. If the compass needle moves, your watch has been magnetized. If you realize there is a big gap, then your watch could very probably be magnetized. His brand’s Martin-Baker collection features movements that are suspended in rubber shells and surrounded by Faraday cages. One of the first things you can do when you acquire a new piece of jewelry is to look for hallmarks. In close contact, their internal magnets can dramatically affect a watch’s accuracy. 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