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Cleaned an old Bartlett full Plate pocket watch that was running fast and ended up working well. Then all the sudden it stopped working well so I started to think "how"? Then I remember putting the watch on my cell phone leather case and it has a strong magnet to keep in closed. So today, I ran it through my demagnitizer and TaDa, working well again. I didn't think magnetized parts could cause such a problem.https://vimeo.com/189232346

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A magnetized watch movement will cause all sorts of problems. The delicate hair spring is the most obvious the hairspring will stick together, any part of the movement that is made of metal can be effected. Another obvious one are the screws sticking to your tweezers unless you use anti magnetic watch tweezers. If you repair watches you need a watch demagnetizer, they cost about £10.

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A magnetized watch movement will cause all sorts of problems. The delicate hair spring is the most obvious the hairspring will stick together, any part of the movement that is made of metal can be effected. Another obvious one are the screws sticking to your tweezers unless you use anti magnetic watch tweezers. If you repair watches you need a watch demagnetizer, they cost about £10.
I bought one a long time ago and have really not had an opportunity to use in until now.





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Try and get into the habit of demagnetizing each movement first before you undertake the repairs. That is what I used to do and it saves a lot of messing about and time.   

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Try and get into the habit of demagnetizing each movement first before you undertake the repairs. That is what I used to do and it saves a lot of messing about and time.   




I will. Big thanks for the advice.


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