Hello happy Watch and Clockmakers, My third question for this AS 175 specimen. I am at the re-assembly stage and I realized that one of my balance jewel is broken. Never replaced one so maybe its the time to try it? I assume I need to follow the advise from Mark: Replace Rub in Jewel   I got these tools from Herr Gustav Boley: and I also got an almost complete Star jeweling tool: I never replaced a jewel, but based on the video i will need bot