Need help identifying model

Good afternoon people. Need help identifying this pattern. Since even the IWC
representatives of my country could not help. I would be grateful if someone
tells me where to look or maybe there is a model magazine. Numbers: 1346847.
If you need to take a more detailed and high-quality photo or some individual
elements, then they are necessary (circle them with a marker) and I will
definitely try to take them. Watch data is a family
heritage_+.

Greetings. This watch looks like a Caliber 89, which is a manual wind,
central seconds - used in a number of IWC models from the 1940s - 1960s.
Based on your serial number it's likely from 1955-1956.

IWC Serial Numbers Production Years

I used this site's guidelines. I cannot vouch 100% whether this data on this
site is good. There is a trustworthy database developed by Marco Schoenberg
called "Date Your IWC" and you can Google for that and download his app. That
one has trusted data - but others may comment on whether the site I linked
above is good/accurate.

Here is info from Date Your IWC for that case number, 1346847.