Archer
··Omega Qualified Watchmakerbut if the independent watchmaker scratches a hand, dial, looses a screw, or needs a gasket (as they should during service) then they are out of luck.
Seals are readily available for these watches - I replace them all the time. As you note the movements are simple - both the ETA 6497 based watches and the ETA 7750 based watches.
As for the risk of scratching a dial or hand, if that is a concern for someone then they should probably take up another profession. To eliminate servicing watches based on this concern alone would mean that any vintage watch would never get serviced, since the dials and hands are essentially irreplaceable. If it's something an individual watchmaker is comfortable with or not is something they have to decide for themselves. But servicing watches where various parts like dial and hands are not available as replacements is a daily occurrence for most watchmakers.
Cheers, Al

