I really like the look of old Omega chronograph's like this one.

I realize that there is hard to find one in good condition with a reasonable price.
I'm looking for a untouched, as much as possible, with a little larger case, 37mm or bigger without crown.
If someone has one for sale or knows we're to find one I would be grateful.
Thanks in advance.

 

those pop up on eBay quite often, however good examples are getting harder and harder to come by