I have an Elgin pocket watch. Inside the back case cover is the number 8682687 and some hand scribed info under the number "E=1482" and also hand scribed is "7835 BR" - I don't know if the hand scribes are someone's repair notes, or from the factory. There is also a round stamp on the back case cover from "Philedelphia Watch Case Co. Gauranteed Twenty Years".
The movement has a few markings. It says "Elgin Natl Watch Co. U.S.A."
The movement number stamped on is 20599980. It also says "Double Roller" & "17 Jewels".
The Dial simply has the name "ELGIN" printed below 12 o'clock. It has a hour and minute hand and a small seconds dial (like a small chrono dial) at the 6 o'clock position. There is no lid over the dial, just the glass cover. The numbers are normal Arabic style.
Thanks for any information you can help with!