Welcome to the forum, and thanks for posting. I will let others comment on value if they care to do so. I guess it's quite unusual to see these without a circle-T dial, so perhaps that makes it special. However, as you probably know, several of these with circle-T dials have come to auction in recent years.
Regarding the documentation, I'll just say that this type of thing is what drives people crazy about the way Omega handles Extracts.
Edit: Here is another thread about your watch:
https://omegaforums.net/threads/today’s-auction-of-an-165-024-seamaster-300-“military”.90296/Click to expand...