Hi StartSomething,
Thanks for the response.
I have acquired a tool set but have not used it yet. I do have access to a half dozen broken pocket watches (they are bigger!!) but I didn't get far with my first attempt!
I would have no problem experimenting with simple tasks. I might buy a few cheap watches to practice on soon.
I do have a person who has carried out work for me, but he is a 2 hour drive away, or postage etc. I have used him once and he appears to be OK.