Omega AUTOMATIC REF 1660120

Hey all, wonderful people and collectors.

I just acquired this watch, this is my first Omega automatic watch. Been looking a long time at one and was finally able to get my hands on one of these.

As far as I was able to find this one is :

Omega Geneve Automatic reference 1660120 with caliber 1022. (I think)
The production date is probably around 1972, at least that is what I was able to find.

If someone else knows anything else please let me know,

I would like someone to tell me what it's worth (if possible)
It works perfectly, I just had it serviced and everything on it is Original.

Yeah well, there is no real demand and supply of vintage watches in my country so I am lucky I found this one.
No, I won't be selling it any time soon I will just add it to my humble collection...

Yes but some ridiculous amount

You might want to take a closer look.

You suspect on what?

I don't suspect, I know the bracelet isn't original, and the bracelet is a key component to that particular model since it's integrated into the case.