Okay, I just received my Illinois pocket watch on EBay today. I made out better than I thought...I think. What I ended up paying $38.50 (shipping included) for was a 12s "Marquis Autocrat", serial number 4,881,488, which I believe places it at 1927. The case isn't anything special: it's a Keystone snap-back that is simply marked "metal" under the Keystone logo; however, the movement is beautiful, and seems to be in good, running order (too soon to see how accurate it is).
What I am wondering is, is there any way to determine what grade my movement is?
(by the way, that's not rust on the movements - it's gold-colored lettering. I SUCK at photography... The movement is IMMACULATE!!!:D)