Servicing can damage a watches hands

Watchmakers I have dealt with are very upfront about what they choose to work on and what they don’t want to- for instance, my watchmaker doesn’t work on Accutrons as he got rid of the specialized equipment that was used to calibrate then many years ago- he just says he’s not able service them to spec and that’s it- no excuses. There are specialists for those watches
Some watchmakers aren’t comfortable working on watches where parts aren’t easily obtainable (which is 80% of watches made before the 90’s), so getting parts requires a treasure hunt of sorts. Sometimes they have to fabricate parts when they are very obscure. These kinds of services can be very time consuming and you as the customer have to ascertain if the watch is worth the investment.

Many of us collectors have gotten good at hunting down parts and working with our watchmakers to scour the world for that esoteric and rare part- they tell us what it needs, we find the parts and it saves them the time of hunting. Even if it’s not a valuable watch, parts hunting costs time which equals money for a watchmaker- some may just say “parts aren’t available, sorry”- which seems to be the case with the guy you went to.