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Oscillating weight hitting balance wheel??


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I had a Mido last year that had this problem and I ended up replacing the weight and shaft it spun on.  Recently I serviced an automatic Hamilton Cal 64.  Rund fine on the bench but when I put it on the winder, it will lose 10-30 minutes in less than a day.  I think it is the same issue...oscillating weight.

Is this a common issue??

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