Need help: Do you know this watch? Does it look OK?

Hi all. This is my first post here. Thanks to all the expertise here I learned so much from you all.

I'm looking for my first Omega watch. I want a beautiful vintage watch that is practical for everyday use. I don't care too much on collectibility or resell value. It will be my first "real grown-up watch".

So I came across this Omega watch. Listed as a circa 1940's. The seller isn't a professional watchmaker, and he doesn't have information on the movement's model.

Seller's description of the watch:
“A gorgeous watch that is ~ 75 years old. Recent Cleaning, Lube, and Adjustment. Receipt if interested. Raised painted numerals, Second hand with seconds in increments of 10 seconds. Striking embossed Argentine leather with Tan Alligator pattern. The tan watchband and Black dial with silver numbers present a stark contrast that never fails to draw attention; however, it has been worn sparingly. Shiny Silver bezel, unmarked silver back. Please see pictures.” In response to my inquiry, he said the case diameter is 37mm without crown, 38mm with crown. He was purchased it in Argentina, and he is now selling from South Carolina. It was serviced in Atlanta a year ago and he saw the Omega movement inside when the watchmaker opened the case back. He will try to have someone open the case and send me a picture of the movement tomorrow.

After reading about how the original paint on Omega's black dials are prone to cracking and deterioration, I tend to believe this is a redial. The question is, does it look like a good redial to you? One that is tastefully done and accurate to its period?

Please correct me if I'm wrong. After reading about black dials in vintage Omega watches, I came to the conclusion that it is a futile quest for a beginner to insist on original black dials. Everything I can find so far is either original but uglily-aged (rare), or it is a redial (more common). It seems that finding a pre-60's Omega watch with original black dial that is BEAUTIFULLY-AGED will take an incredible amount of time, knowledge and luck. Do you agree?

I really like the look of the watch. But I'd like to identify its period, model and authenticity before I decide to buy it. Most importantly, would you buy it for US$500?

Your input is greatly appreciated!!!!!

We cannot identify model, date etc without a picture of the movement. As you point out, it has been repainted so we would need to see what is under the hood.

Here is a picture of the movement. The seller reports that a screw heads broke off when his jeweller inspected the movement. He suspected that the previous watchmaker might have over-tightened the screw and it started to cracked over time.
Do you think the broken screw should be a concern, or is it a easy fix? How does a watchmaker remove a broken screw in this case?

In all fairness he didn't say anything about putting it all back together 😉

The seller described this to you as recent clean, lube and adjust, was this done while the movement was in the case? If you want it go for it, but factor in a service fee of $US300 which is I believe what a quality watchmaker will charge.

wow ! alum -- is that a joke -- i use a penetating oil soup

I thought rum only loosened the screws.....

I sort of figured that out......

but living in the NT waiting for the Wet to break and drinking rum would probably feel like you had a screw loose.

So besides the broken screw, does the movement look good to you? What's the caliber model? Does it seem original to the watch?
Thanks guys