When you put a compass near a magnetized watch, the lera T will change pointing to a different north direction because the watch has been magnetized. You can usually measure this using a compass before you consider an overhaul or service which is the first thing that might come to your mind if your watch is not telling the time accurately. In some cases, it can speed up and slow down the time by a couple of minutes a day. This can happen in certain cases, for example, touch in or touch out machines which use magnets can cause this, some scanning facilities can also cause this disruption in the movement. Now the risk of a mechanical or automatic watch is that once you expose it to magnetic fields, it can make it less accurate to tell the time. This was one of the reasons Rolex also developed the Milgauss with the parachrom spring so it would not be affected by powerful magnets used in certain scientific and physics experiments. Quartz watches do not suffer as much from magnetized parts as much as a mechanical or automatic watches as these movements have far more mechanical and moving components inside them.
Which Watch Movements Are Most Vulnerable? Credit It is understandable with all the components being made of metal and naturally, most metals will attract and hold a magnetic charge even after you remove the magnet, think back to a screwdriver or paperclips which seem to stick to each other even after there is no magnet attached once they have been near one. In most cases, these forces have been known to aid medicine and industry however one of the biggest enemies of a watch movement is, you guessed it, a magnet. Usually, all the electrons in a magnet seem to move in the same direction thus creating a north and south pole whilst also creating powerful attracting forces. A quick lesson on how they work will give you a better understanding of the topic. Magnets for all their wonders are fascinating things.
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