Zenith CP2 Purists 15th Anniversary. What strap?
I must say that the two straps which are provided with the CP 2 15th Anniversary are so good ( and I don't say that often! ) that I didn't feel the necessity to wonder which other one would be à propos...
A rough calf strap would do the job, I feel. A Canvas, probably.
I just realized that I don't have many 22 mm straps...
I will work on that!