Re: Magnatization
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  1. #1
    Member Trever1t's Avatar
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    Re: Magnatization

    Other than the obvious causes for magnetizing a movement (large magnets, magnetic fields from electric motors, generators and the like) what are the normal causes? Could placing a watch on/near an iPad or cell phone cause it? Does it generally cause a movement to speed up? How does the effect of magnetization cause that? Could a little magnetization be cause for a gradual increase in time?

    Just curious!

  2. #2
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    Re: Magnatization

    Had my watch near 40,000 volts and spark gaps, don't think so.

  3. #3
    Member Norm S's Avatar
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    Re: Magnatization

    Magnetized movements do cause the watch to speed up. From what I've gathered, electronics and specifically those that emit wireless signals can cause it. iPads are the worst to lay your watch on since they have magnets in the side of the case. Wearing your watch during an MRI will definitely give it some magnetism. Either way I'm no expert this is just what I've read, I'm sure some of the more headier guys will come by and elaborate.


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  5. #4
    Member flybynight70's Avatar
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    Re: Magnatization

    Basically, avoid getting your watch near any type of magnetic devices (things like home stereo speakers).

    FWIU, it's the hairspring that gets affected and will alter your watch's timekeeping.

    And yes, a dramatic increase in timing is usually a sign of magnetization.

    Fortunately, this is usually easily and cheaply solved by taking it to a watchmaker or jewelry store that has a "demagnetizer". I had this happen to my vintage auto after farting around with my guitar amp and my local watch guy was able to demagnetize it and have it back to me after a few minutes. Easy peasy! (if that's where the problem lies.)

    Good luck!
    Dishonorably discharged from the Kiss Army.

  6. #5
    Member flybynight70's Avatar
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    Re: Magnatization

    Quote Originally Posted by Watchbreath View Post
    Had my watch near 40,000 volts and spark gaps, don't think so.
    That's a lot of carpet-static, Watch!

    Or did you mean the trace mineral?

    Dishonorably discharged from the Kiss Army.

  7. #6
    Member ev13wt's Avatar
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    Re: Magnatization

    My Japanese speakers warn me.


    fredrick likes this.
    Money can't buy you happiness. But it can buy watches.

  8. #7
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    Re: Magnatization

    One of my jobs was working in development of auto ignition systems.
    Quote Originally Posted by flybynight70 View Post
    That's a lot of carpet-static, Watch!

    Or did you mean the trace mineral?


  9. #8
    Member yankeexpress's Avatar
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    Re: Magnatization

    The covers on iPads have magnets in them, FWIW.
    Trever1t likes this.

  10. #9
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    Re: Magnatization

    You could magnetize a watch by striking it funny.

    And can demag wrapping it up in socks and underwear befor slamming it against the floor...nit recommended but it can work. You might just end up with a nice abstract work of art.

    Sometimes magnetization happens to people for mysterious reasons for people who aren't near magnets at all.

    For the most part most modern home speakers should be magnetically shielded. Maybe not the Sharp 20 disk boombox with detachable bookshelf speakers.

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  11. #10
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    Re: Magnatization

    So, if I'm reading all of this correctly, magnetization will always cause a watch to speed up not slow down?

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