What have I found?

Came across this today but can’t find so much info about it. Someone here that can enlight me?

[](ibb.co/jhJRyG)
[](ibb.co/cpVvsb)
[](ibb.co/fZ7myG)
[](ibb.co/esMksb)
[](ibb.co/cRvZkw)

A beautiful C. 83 with Pellaton winding system.
Wonderful treasure!

Youre sure its not a C. 85 ? Looks like a five to me :-)

Date your IWC has it as a c 85

Definitely Cal 85.
Cal 83 is manual wind with sub-second.

Yes definitely a c.85. I read wrong before. I also might have remembered that the 83 is manual wind. If you press on the picture the resolution comes very high. And there you see the 85.
Congratualtions once more!
A nice and original one.

Hi, I think you have quite a rare watch there. Beautiful! As you probably know the cal. 85 soon developed into the cals 852, 8521, 853, 8531, 854 and 8541 which all were used in the famous Ingenieurs and a lot of other watches.

To me it looks like it has an original dial with radium lume (but I'm not an expert). If it was my watch I would have the movement cleaned and oiled, which any competent watchmaker can do, but leave the dial and hands as they are. This to keep the history of the watch intact, that means that it will be even rarer as time passes.

There has been a discussion here the last few days about another rare oldie with the original dial and the unanimous vote is to leave the dial and hands as they are.

Best regards,

Henrik