This has been a spectacular thread by Timelord and I have truly enjoyed it with everyone’s responses making this forum a real privilege to be part of! Good to see that some answer was found even if he still has not resolved the issue
I have also met some very old school Artisan professionals including watchmakers that did everything by hand without electronic timing machines! There is art and there is skill! Watchmaking is a science in its own right and only very few people can see this! Sadly schools and the education system are not what they use to be- well at least in my country! Here you learn more by staying out of school than by going to school!