I wish I knew the function of each pusher. But I have kept it in a winder for so long that I haven’t had to use them. As for the moonphase, I honestly haven’t monitored it to see how accurate it is.
I got this watch from PSM when he was making the watches. He was very helpful and very easy to work with. If you have his email and don’t mind sharing, please PM me. I’d love to get him to tell me again what each adjuster does. The instructions don’t say ...