192.051? Early to mid 70s Geneve with a caliber 1012 automatic movement. 35mm case.
Agree that it is a cal. 565
Here is listet 565 references. Look at the Geneve's
I Guess it will fit serveral references, they can have different diameters on the dials
https://www.omegawatches.com/vintage-watches?v_watches_calibre=3074
https://www.omegawatches.com/vintage-watches?v_watches_calibre=3072
My guess is 166.070 or 166.041