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Posted

Can anyone help me please with my vintage Seiko 7019 - 7060

It used to keep perfect time but suddenly started to go really fast.

The balance is oscillating so fast. It's going like a rocket.

Help !!!!

Posted

Likely the hairspring coils are touching or is strongly magnetized. If has not been done in the last 10 years it should be completely serviced.

  • Like 1
Posted

Any of numerous conditions shortening the free/ effective  length of the hairspring is a likely cause.

I pop the back open and observe the hairspring.

In all likelihood magnetisation seems to be the issue, how fast dose it run?

 



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