I found a couple more fascinating vintage pieces in my collection that I'd love some more help identifying!
There were a bunch of small, small, small (around 15mm) ladies' style quartz watches from Pulsar, Seiko and Timex - not terribly interesting, but one or two might end up in my wife's collection. Is there a name for these sort of watches?
The two that really stood out were this ultra-small Gruen, and a Timex Electric. I've never seen one of those before.
The Gruen is nearly microscopic - measures just 10mm wide. The face reads "Gruen 17 Jewels Swiss". The back reads "Gruen Base Metal Bezel St. Steel Back" and the inside of the caseback reads "Cased and Timed in U.S.A. by Gruen Watch Co. 490A 425687" The movement is the tiniest thing I've ever seen, and reads "Gruen Watch Co 673N 17 Jewels Seventeen Swiss Unadjusted." The look of this watch is really unique - seems to be like a rice paper textured metal, with a permanently installed band that blends perfectly into the case. The dial has the same texture to it, and the lettering is all black. The photos make it look sort of like the lettering is wavy, but that's just because the camera couldn't figure out what to focus on at this size - it's quite straight on a textured background. The back of the clasp on the band reads "Kestenmade 1/2010K.G.F. U.S.A. St. Steel Back Patent No. 339308.
Now on to the Timex. I don't have a battery for this one yet, but I assume it uses a movement similar to the Accutron? I don't actually know, but the design of the case suggests a lot of equipment packed inside, more than you'd expect from a quartz. The face reads "Timex Electric Germany 8305006974." The hands and batons are embellished with blue, and the second hand is entirely blue. The look is very cool - I'm afraid the pictures didn't capture the beauty. The dial is textured in a diamond pattern.
Any help is of course appreciated! I hope sharing these pieces helps repay everyone for their help with identification