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8 hours ago, Nucejoe said:

So you just hope the jewels are in good shape?   

Is observing the freely turning balance test conclusive? 

Rgds

 

I removed all of the jewels, cleaned in Essence of Renata then lubricated. Watch is running with good amplitude, rate and beat error. 

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  • 3 months later...

Hmmm.  I wish I could figure out what that lower spring is.  I have the same movement (Standard 1686) with the same shock mounts from a Modaine (not Mondaine) pocket watch.  It's one of the first watches I serviced and of course, that lower spring reached orbital velocity.

Odd thing about the watch; the dial has the Mondaine logo, but the name is clearly spelled "Modaine" without the N.

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