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Elton

7S26 balance collet

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4 minutes ago, Elton said:

How about using high tech stuff like superglue. Some super- glue has 9 seconds timeframe 

I would be careful with that, you do not know how such stuff when in contact with the hairspring it might cause damage 

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8 hours ago, Elton said:

The collet has a horizontal slot retaining the hairspring. Is it held on by glue or press fit. 

As mentioned in similar topics before one can't, in practice, do any manipulation 7S26 hairspring collet. It is set at the factory and meant to stay like that for life. So in case of any problem the balance complete must be replaced.

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4 hours ago, oldhippy said:

Normally press fitted, but very old watches can be held in with shellac, I have seen many pocket watches with it

I have seen nail polish used as glue on collet-staff, no sign of lacquor damage to metals 50 yrs later.

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