Advise for 1946 Omega

Hi guys,

First of all thank you for accepting me on this website.
I am very inexperienced with watches so bear with me.

My great aunt started selling all kinds of old jewelry and watches recently. One of them being this Omega watch.
It still winds up and shows the time and chronograph correctly but it needs a service, the lower button doesn't work anymore.

A store in Brussels wanted to give us 800 euros for it and said it was a shame the dials were damaged, else it would have been more.
To fix it he told us it would be around 700 to 900 euros.
We didn't ask what the model was because at the time the goal was just to sell it.

I have done a little bit of research and found out it was approximately made in 1946 and bought new by a family member.
(Serial no.10723463)
No documents are left.
It looks alot like this watch I found online except for the dials being a little different. https://www.timeline.watch/watch/1946-omega-chrono-tachymeter-ref-ck2279/

My questions are:
- What is the name of this watch?
- Is it worth buying this watch from my great aunt and repairing it (1500-1700 euros total)?
- What is the approximate value for a watch like this in good shape? Because I don't see them for sale online.

I really like this watch but for me this is a big investment, so I am only doing it if the watch is worth something.
If it is just a regular watch I rather buy something more special.

Thank you in advance guys!

The watch still is at my great aunt's house, these are the only pictures I have. I will post better ones when I have the chance. Yes the "11" is gone and the "12" part of it is gone. The outer track is gone like you said.
My plan is not to make profit by the way. As long as I can sell it later without losing too much money it's fine with me.
I have still one picture on my phone where the damage is more visible I will add it to the post.

It's worth multiples what you were offered.

Art

If you have euros 800, give that to your Aunt. And quick ! Tell her, you want to experiment a bit of repair work yourself.... The movement seems ok. The pusher adjustment should be no big problem for a watchmaker. Needs a complete service anyway, but someone here will be able to direct you to an experienced vintage watchmaker for Omega Cal. 321. And it should not cost more than Euro 500 to get it back into good working condition. Do a better job with the pictures, pls. The Dial is the most important part of this chronograph. Focus on that the rest is no problem. Hands are fine as well. Good and rare watch, buy it.

Your last picture shows, that all numerals are there. Just the minute circle is damaged. Possible this dial could be cleaned, that large upper stain could be excessive oil ?

Thank you guys for responding!
I decided I will buy it from her and having it restored.
I will do some research on where I could have it restored (preferably in Belgium).
I do not plan to make profit on this watch. As long as I can sell it for around the same price in a couple of years to buy something else it's fine with me, I just like the watch especially because of the age.
Took some better pictures today. Maybe this gives a better view.
It's very difficult to take a picture of the damage, I kinda like the "patina" look of this watch.

That might be possible. As the Numbers are still visible behind the faded part. But I'm no expert so not certain.

I think I will keep it. So I don't think a auction house is necessary. But I will take a look where I can repair it/ service it.
Thank you for the advice!