Can someone please help to identify this model ?

Hello everyone,

I inherited the watch in the photos 3 years ago after my father passed away.
I am now trying to find out what model it is so that it would be easier to find a replacement parts for it.
I want to restore and keep it in the family.

Thanks for helping.
Regards
Radu

I managed to get he case open.
The serial is 1194431 for the caliber and 1165245 for the case.
Is it a cal89?

Thank you

Found it thanks to post on the iwcforum.
It is a cal89 from 1947.

Thanks