A few questions about an Omega women's vintage watch

Hi all-

We recently got married and my grandmother gifted my wife an Omega watch she got for her retirement in 1975 from her employer 'RT Skopje' (you will see it in inscribed in Cyrillic, but it stands for Radio Television Skopje - Macedonia; communists gave great gifts in their heyday). The watch has been in its box and not been worn since at least the early 90s.

Anyway, its a family keepsake, we have no interest in selling, but would like to have an understanding of:
-What model it is?
-What kind of service does it require?
-Can we let any watchmaker open it up and service it or is there a specific one I need to go to? Is there anything finicky on it? Is there a part or component in this particular series that needs special attention?
-Do replacement parts generally exist for watches from this series? Are they hard to find?

We've taken a few pictures of it with an iphone. We think we got all the inscriptions, markings, other relevant angles in the pics, but let us know if we are missing anything. Also let us know if the pics don't make it up, since its our first time posting.

Any light you can shine on our questions, or anything we've missed would be greatly appreciated! Thanks in advance.

-I&K

Thanks, Gator. We will take it in to get it serviced and I'll ask the watchmaker to snap a few pictures of it once its open.

Canuck, thanks for the heads up. Wife says she wants to keep it this way. Whats the native/standard/best-looking-in-your-opinion bracelet for this watch?

Thank you Canuck. I will look around for a black strap.

Gator, you were right on identifying the model. Pics below.