Got a new tool
By the way 68:
I performed all these diagnostics, checking the battery, checking the coil, checked the solar panel, the capacitor, etc. I thought I was stumped until I looked at the technical document and saw there was one screw missing from the battery guard. I knew you'd mentioned it, but being new to working on watches, it didn't occur to me that it was a particularly important screw that was used to ground the main connection. (I should have noticed that there was a "(-)" marking right beside it however) So I moved a screw from the train bridge to the battery guard, and it worked
I'll see if I can find a screw that fits for the train bridge. You won't want to operate the watch for very long without that. (I took it out right away)