Can someone identify what this is and give me approx. value...

Funny story,

So my wife is going through some stuff in our basement and I came home and found the kids playing pirate treasure with some stuff. This piece caught my eye and I mentioned that maybe she should not let them play with it. So best I can tell this is a vintage mechanical Omega De Ville which keeps good time etc. It's in very nice condition and I have the box.

What can anyone tell me about this? Model # reference # or anything. Approximate value would be great. Apparently it's solid gold 18k.

Thanks in advance for any help.

I guess those pictures aren't as good as I thought.

nice vintage watch.
I am not the most knowledgeable one here but I don' t expect you will find much demand for this type of watch, so it will not be easy to sell.
Its value is very likely the "melt" value and depends on the amount of gold.

What @cicindela said.