Sorry, I will keep my source secret because I'm not ready with all my franken projects.
Is the gen dial the same size? Some are as other users told me, mine was not. I had to dremel it down to the correct diameter, it was 0.4mm too big in diameter. Yes, dremel it down! I was really pi... because my watchsmith told me the dial is too big and he cannot put it into my watch. I tested it, I got a second 3777 rep to test it - my dial was too big. And so I said, "ok, no risk, no fun, no gen dial" and started my dremel. It was pretty easy, no problems and a short job. I used sandpaper in 3 grains starting with the harsh one going down to the finest. Don't use sandpaper which is too harsh. If the grain is too big it can cause scratches on the dial face!
After that my dial fit exactly to my case.