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Seiko 2205 watch magnetism problem

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fucpl New Member

fucpl

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Hi

I'm struggling with this piece. Its  Seiko 2205 with 28800 bph. It's has been rebuild from scratch and it's working fine for some time then the balance spring gets magically magnetized( no obvious source of magnetic field) and I have no clue how to demagnetized it. I have demagnetizer as per photo and while it does the job on tweezers and screwdrivers i had no success in demagnetizing this balance/spring. I have already run 3 sets of new balance wheel and spring but it tragically uneconomical. Any hints how to demagnetize it without spending a fortune on pro demagnetizer. Maybe somebody here would be kind enough to demagnetize it for a little fee. Thanx for any hints

IMG_20180927_200356[1].jpg

watch-tool-demagnetizer.jpg

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Nucejoe Distinguished Member

Nucejoe

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In regards to " no obvious source of magnetic field" and to make sure your assumption is correct.following demagnetisation , I would put the watch in any metal box fully closed, this box will absorbe any force carrying photons ie, prevents magnetic field affecting inside the box. The source of the majic is there, it has not been identified.

Regarrds

 

 

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fucpl New Member

fucpl

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Hi

Thanx for your answers. Yes i have demanetized the whole watch, while it was unwind. Last time it happened i ended up buying new balance assembly which worked for 2 months then watch was left unwind for maybe a month and while wound it started to gain about 5 sec in a minute. i left it to loose power, demagnetized  it and with no luck. Maybe i should mention that the balance spring is super thin and tiny so i'd assume it would be more prone to magnetism problem.

As of the box would empty  metal food can do the job?

 

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