Hi Big
Thanks you for that!
I think most of the things seem to check out when looking at the website but I'll have it serviced and have it looked it to ensure it's original. Good spot on the dial! It is indeed missing the T-T between swiss made
You're right on the crown, it does indeed have an omega logo (difficult to photoghraph). It seems to be protruding but if pulled it comes all the way out. It measures from start to end at around 1.5-1.7cms. I cannot seem to change the time on the watch so it definitely needs fixing. It will stop if not worn and if i move it it starts up again, but I think that's normal. The watch generally seems to have oxidisation or just general grime as I think it was sitting in a draw for ages as my dad didn't use it. And I noted the strap also not being the original either so thanks for confirming that!.
Could it be the crown is protruding because it might need a good clean? See pics and thanks for your help!