Advise Omega 165/024

Depends on what you mean by a restoration. This is a collectible watch, worth in excess $6k USA. Priority one would be to have the movement disassembled, cleaned and reassembled -- and by a competent watchmaker. (avoid sending it to Omega, as they may replace valuable parts with modern replacement parts) The lume is moldy looking, and that is not something that can usually be cleaned much without caused damage; decide if you are okay with it like that, and if not there are a couple well-known people who can relume in an attractive -- yet original-looking -- manner. Replacing the crystal would improve the looks a bit. Avoid a case repolish to remove the scratches if you want to preserve value. The bezel looks nice, although others here are experts for assessing if refinished.

It looks like a nice watch, and there is value in keeping it as original as possible.