Can someone help identify this geneve watch and is it real?

Old omega watch I just received. I am not sure if it is real or the model. Can anyone please help? Thank you. Much appreciated.

Looks like a genuine 166.0188, I think.
https://www.omegawatches.com/en-us/watch-omega-geneve-omega-md-166-0188

Thank you for helping me.

The dials looks like the same as this one --> https://www.omegawatches.com/en-us/watch-omega-geneve-omega-st-366-0836

but the watch lug looks like the one you posted Olhenry56.

If you do a Google image search of "Omega 166.0188" you'll find many dial variations for that reference. The Omega vintage watch website only gives one example of each reference, if even that.

Nice, thanks for that explanation.

To be clear, though, I very well may be wrong about that reference number - I'm not an expert at all and I'm pretty unfamiliar with Geneves. To confirm, you'd have to get a watchmaker to open up the back. The reference will be on the inside of the case back.