Was before the pandemic so some years ago they might have improved. Maybe they are trained on just servicing the movements, but the simple stuff old time watchmakers know how to do the odd jobs like a simple hand repair they might be a little lost and might know how to do it now. Or it's for speed to get the watch in and out like not fixing the hand and just putting a new hand on.
It was an unfortunate experience for you.
I guess, like in most things in life, a reputation can sometimes become as good as the least talented person on one's staff or be set back with one unsatisfactory experience.
RGM builds watches from scratch. It seems unlikely that 'simple stuff' would be beyond their collective capabilities.
They have the tools to make a new hand tube or pipe if that is what the hand needed. I am in no position to say why they did not want to rework the hand for you, but perhaps they didn't want to assume the risk of dissatisfaction with the repair and the likelihood the hand would have had to be repainted. See note below.
I believe RGM will shy away from a job with which they are uncomfortable.
I'd be reluctant to heavily criticize any watchmaker if I were not satisfied with a single service. I'm not suggesting it is wrong to do so as one may save others some grief. I'm simply stating I would not do it.
I had a monumentally bad experience with Gallet service - no evidence that the watch was ever disassembled even after sending the watch to them three times. Gallet service gave me a 'cock & bull' story each time they returned the watch to me. I personally could not say the watch was not at least partially disassembled, but I benchmark every watch I acquire on the timegrapher and I recheck the watch prior to sending out for service, entering the data into an Excel spreadsheet.
When a watch is returned, it should have excellent amplitude, reasonable S/D timekeeping, with stability on the plot and a low beat error, generally 0.5 msecs or better. The Gallet serviced watch ran like crap and got progressively worse upon each return.
In the end, I bit the bullet and sent it out to RGM and it came back running like I would expect, ticking all the right parameters on the timegrapher. When I asked what they found, they were hesitant to say at first, but upon my persistence, I was told that the movement was very dirty and looked like it had never been serviced.
I did not condemn Gallet service right away, but waited until I became aware of similar reports from others. I've since urged people to stay away from what is left (one person) of the US Gallet organization, Multichron Service located somewhere in Florida.
Now here is the "Note below:"
I would also recommend Precision Horology, Ashton Tracy though I have only had one experience with him that was very satisfactory..
Ashton serviced an Enicar a 1961 Sherpa Graph Ib "Jim Clark" gray & white for me and it too had a loose central chrono hand. At one point it looked as though it would need a replacement hand pipe or tube which Ashton has remade for others from time to time. In the end, he was able to complete the repair of the hand and there has been no slippage.
I reached out to Ashton in this instance because RGM would not have been able to take in the watch for several months or more and their backlog at the time for return was a year or more. I'm too damn old to wait that long. ;-)
Communication is of primary importance once you know you've got a good watchmaker who is talented . . . and also will set proper expectations for turnaround time.