Welcome!
Have you Googled 'omega ref 132026'?
The numbers in the back-case give you the reference of the model, the 'Omega cal 611' gives some insight in the calibre and the serial number can be found on some sites too.
Actually, it is not that hard.....
My2Ksh
Edit: even Googl'ng 'omega 132026' takes you to some info.
It is not hard at al.....
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