Longines 12,68 balance wheel wobble

[rogart63]

Anyone have a video or a tutorial how to straighten a balance wheel. Would like to learn how to do it. Have search but can't find anything. 

[oldhippy]

There are videos on Youtube on how to poise a watch balance. I cannot find a video on how to straighten a balance wheel. It depends what the balance is made off, some are so brittle they cannot be straightened and just break, many just crack. Have you tried to buy a replacement? or is it obsolete. 

[rogart63]

1 hour ago, oldhippy said:

There are videos on Youtube on how to poise a watch balance. I cannot find a video on how to straighten a balance wheel. It depends what the balance is made off, some are so brittle they cannot be straightened and just break, many just crack. Have you tried to buy a replacement? or is it obsolete. 

Seen them to. But's was the use to have a balance tool like this if you can't straighten it.  At least a little.  I guess if you do it in the tool the pivots will bend or break. Btw i bought this old tool  this yesterday. Had a wobbly Enicar/AR balance yesterday. Okay it worked but would have been great to fix some of the wooble. 

 

Edited November 24, 2018 by rogart63

[nickelsilver]

The tool should be made in a way that it supports the staff on the conical area not the pivots. There are oddball variations. Supported on that area you can use a surprising amount of force on the rim of the balance. Fried's book and others cover it well, I'm sure DeCarle, Chicago or Bulova school texts, it's a common procedure.

[StuartBaker104]

Does this help?

[rogart63]

But that book i have. By Donald de Carle. 

[rodabod]

I have that book, but maybe I have an earlier version as truing balance wheels is not in it. Those pages look excellent.

[Watchtime]

wow, microsurgery...nice read guys