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Hello guys,

I'm servicing a ATTA with JEAMBRUN 23D movement.

Does anyone by accident know the liftangle for this type of movement?

I can't find any info on the net. It seems ist amplitude gets to high but i want to know the correct liftangle so i can discount that as a problem.

Thx in advance!

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It always helps to give us a picture Or give us a link to a picture so we know what you're talking about. For instance the link below we can see what it is.

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Jeambrun_23D

Typically for wristwatches the lift angle that it defaults to will be just fine. If you're obsessed and you actually have to know what the lift angle is you can follow the method outlined in the video below

https://youtu.be/1ozEEAkYX0M

 

 

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