IWC Schaffhausen Classic Vintage Oversize 36 mm

[Agamemnon]

Hi everyone!
I purchased this vintage IWC Schaffhausen Classic with an oversized 36 mm case on Chrono24.
I kindly ask you if you can give me some more information about this watch from 1955 (indicative year).
The watch is in excellent condition, polished gold case, restored dial and recently serviced movement.
Unfortunately I have no other information. I also searched the net for a similar watch but I didn't find it (so I think it's rare).
Thank you very much.

[Widows Son]

Possibly a cal 89??? Google it and see what comes up. The purists will knock the refinished dial, but maybe the old one was unreadable??? Regardless, it's a beautiful watch, I'd wear it proudly!!!!

[Agamemnon]

Originally Posted by Widows Son

Possibly a cal 89??? Google it and see what comes up. The purists will knock the refinished dial, but maybe the old one was unreadable??? Regardless, it's a beautiful watch, I'd wear it proudly!!!!

Thank you very much!
This is precisely the famous Caliber 89.
The watch arrived this week and I was able to verify by opening it.
There isn't much information on the watch though. This is why I am not saying that it is rare, but not that common either.