I'm afraid that's as good as it gets. Back in the day, watchmakers were trained to disassemble and reassemble whatever came, along with knowing the oils and oiling points. By that I mean watches were all similar enough that their training would suffice.
I have a tech sheet from an AS1361, which I understand was their early attempt at an automatic. They included the exploded diagram from the automatic:
because it was brand new and no one had training on it (not sure what the balance assy. needed to be included for).