Quote:
Originally Posted by SearChart
The terminal curve (last bit of the hairspring before the stud) was stuck behind the rest of the hairspring, common issue after a drop. Next time just slap it a few times in your hand to dislodge it.
Broken balance staff would mean it would run with either dial up or down depending on where it broke, still completely unusable since it only 'runs' in that position, but a good sign to diagnose a broken staff.
Also, you can take a balance bridge with balance out of the movement even when fully wound, the pallet fork will prevent it from unwinding all at once. Now don't take the pallet fork out when fully wound (I've been there)...
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Thanks for the info on the hairspring. You give me more confidence that no lasting damage was done.
I did try the bang technique to start it after it's fall, but it wouldn't go and I wasn't about to drop it again in the hope of a magical fix.
I've also had a main spring unwind on me before, so I was being very cautious with this one, having just fully wound it.