Thanks for posting. Interesting to see how it is made up. I like the coin edged bezel.
Perhaps I need an Elgin A11 to make a set. I have three: Bulova, Hamilton and Waltham, or specifically a silver cased Bulova A11, Hamilton USN so an A11 with lumed hands and 6B/234 so a Waltham A11 with RAF markings.