Watch demagnetising itself?

So in a totally boneheaded move, I played several games of magnetic darts with my nephew on Saturday while wearing my Sinn 556. The magnets in the darts are small but fairly strong. It was only later in the evening when I was putting the watch back in the box (where it sits next to a quartz watch that I use to set my mechanical watches) that I realised it had gained over 25 seconds since the morning.

I cursed myself for being so stupid and resigned myself to buying a demagnetiser, but checking the watch today I've found that it's back to running at +5 seconds per day as it has since the day I bought it, so it seems to have demagnetised itself!

Anyone else had this happen before? Feeling pretty lucky, and I'll definitely wear a Casio next time I visit my nephew!

Reply
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No, kinda OCD about my watches. You can buy a de-magnetizer online. Easy to use. Use a Compass to see if your watch has magnetized.  Also check your lug pins. You might be surprised. 

Cheers!

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Likely not magnetized unless you were like placing the magnets on the watch.  Wear it a few days and see where it settles.  

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From what I understand, magnets can interfere with a watch's timekeeping without magnetizing it per see. In other words, if your watch is only temporarily around magnets, its timekeeping might be affected during that time, but the contact isn't enough to actually magnetize the watch. This might explain why the watch got so off during that period of time and then returned to normal afterward.

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JacobS96

From what I understand, magnets can interfere with a watch's timekeeping without magnetizing it per see. In other words, if your watch is only temporarily around magnets, its timekeeping might be affected during that time, but the contact isn't enough to actually magnetize the watch. This might explain why the watch got so off during that period of time and then returned to normal afterward.

That makes sense. Cheers