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Hermle 340-020 movement is running TOO fast

stephan135

Registered User
Oct 21, 2021
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Hello I am working on a Hermle 340-020 movement. I dismanteled, cleaned and oiled the whole clock but the problem is that it is running TOO fast.

In 1 hour it gains 3-4 minutes. I tried regulating the balance wheel and added 4 little weights to it and it stills going too fast. I also tried using another balance wheel and installed another mainspring barrell from another clock.

Should I try to add more weight to the balance wheel?

Thank you.
 

Willie X

Registered User
Feb 9, 2008
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This has been covered here many many times. I would guess that you might have the most popular topic ever covered on this message board!!!

So, I would respectfully suggest that you search the archives and read a few hundred previous post and report back on how you are doing, specific problems, questions, etc.

Willie X
 
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