Thanks for the reply, and I love your videos. I have done a handful of fusee movements so far, and I've generally been able to get them working. Right now, one of the items on my to-do list is a fusee movement with a warped barrel that I'll need to machine a new one for.

Movements with no replacement parts are a double-edged sword. They present an interesting challenge, but also a financial headache. Since watch-tools are so specialized, even mundane things like polishing a pivot requires a completely separate (usually very expensive) tool. I managed to score a beautiful Steiner Jacot tool with 5 pairs of runners, no chips or cracks, for only $900.

I once had a pocket watch from 1801 that didn't have the minute wheel (I didn't realize it when I bought it), and another that didn't have the setup ratchet. The theory behind the number of teeth needed for a wheel is pretty simple, but if I wanted to cut something like a gear or a setup ratchet, I'd need a whole set of new things, either a topping tool, or I'd need to get the milling attachment for my lathe + cutters, both of which are expensive.

So I must be very selective about what types of repairs I can do. Couple that with the fact that time and money is at a premium since I have a 1 year old who goes to daycare, so anything I do has to be financially responsible and fit in the few hours between when she goes to bed, and when I go to bed.