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Posted

Help.

I am repairing a Waltham pocket watch and I realized after I staked out the balance staff that it had a hub that was not supposed to be removed from the Balance. I now have the new staff and need to figure out what to do to get the hub back on the balance or some other technique to get it back together. Need some advice on this one, please. Pictures provided of what the balance should look like with the hub and the new staff and old staff with hub attached. Darn those waltham engineers!

JD

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Posted

What I would do is to re assemble the balance with the old staff and hub to the balance wheel as original and then fit up as per the drawing and withdraw the staff leaving the hub in the rim, making sure its flat and true and tight. Is this a friction fit staff. Them start all over using a stump which will support the hub on removal of the old staff .

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Posted
22 hours ago, jdrichard said:

Darn those waltham engineers

unlike some of the ways that they came up to torture us this one they gave you a clue by coloring the hub blue. Then unlike some of the other watch companies it doesn't appear that normally it was a separate components.

then I agree with watchweasol I would try to put the hub back in then drive the friction staff out with the proper support. If you're lucky get the hub to stay in place they can put the new staff in

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