Thanks, rogart63. I'll try that balance-swing test next time I pull the crystal. I ended up punting by setting date and time to the present before quickly casing and replacing crystal. Since it's my own watch, I can get away with such badness. :-)
After all, I shouldn't have to mess with the date until...oh crap...the end of this month when I have to deal with the short month we're in. Doh! If I was smart AND lazy, I would have set the date to compensate for that change, if possible. Oh well, I'll pop the crystal again in a couple of weeks and check it out further. I'll also brush up on using the timegrapher.
In the meantime, I have another Wittnauer electronic I bought a while back to clean. It has the later ESA9154 model in it. Thanks again.