I've got my grandad's pocket watch (mother's side) but have never had it appraised.
It's an Elgin with an art nouveau face. I'm sure it would work if I had it cleaned. I have had to working for short periods in the past. But I don't know enough about it to be comfortable taking it to someone to have it cleaned/appraised in person. I'm too afraid that they will replace the workings with imposter parts. Is that a rediculous notion? I'm pretty sure no one has had this thing open since grandaddy was alive and that's been at least 30 years.
The numbers are art nouveau style and appear to be either brass or gold. It's dirty so I can't tell. The hands are blue metallic and there is a little second stopwatch dial that the hand has fallen off (it could be fixed; it's still in there. The case is slightly tarnished so maybe nickel or if I'm luck platinum. If it were solid silver, I'd think there would be more oxidation on it. The overall appearance says to me 1910 or just before WWI. Though I'm not an expert. It definitely doesn't look art deco which would mean 20s or 30s. The back of the watch shows a type of banner/bunting design with a little box in the dead center. It looks perfect to engrave initials into, though it's not engraved.
edit: If you could help me shed some light on what I have, I'd be really grateful. :-)
edit2: After poking around on the net, it looks like this watch could be from the 1920s after all. And I understand that people used to buy the movement and the case separately. My grandparents' family used to run a general store (1/2 grocery store, 1/2 dept store) in a little mining town in western PA. It wouldn't surprise me if this was a watch that would have been for sale in the store.
Here's one with a very similiar face:
http://www.onlineauction.com/index.php?page=auction:view_item&auction_id=243451&auction_name=1931%20Elgin%20Two-Tone%20Pocket%20Watch