The crystal was a perfect fit and final assembly is completed! While this 6BM has no published lift angle I'm testing using 48° and have seen some impressive numbers when the dial is up or down. This movement has some positional error in the vertical test points due to what I would expect to be poising error. I'm not equipped to improve this so I am leaving well enough alone. The movement being fully serviced is running very well despite some beat error in the range of 0.2ms to 0.8ms depending on position. I have managed to regulate it to hold a six position average of -4.5sec/day which for a watch with no sweep hand and a dial less than half an inch (>12mm) in total diameter isn't going to be noticed. It will come down to the wearer and what positions it stays in the longest if I am to do any better.
A few parting shots of course are due!
Thanks again to all who helped me with this project. I will present it to the new owner tomorrow night at dinner :)
