Nice find. I have a special like for most French bikes. Anyway...
I really can't remember the details of finding this Inter Club but I believe it is pretty much wearing original issue components, with the exception being the after market saddle. The OPs, with the Japanese stuff is likely later seventies. I believe that the French were the first, or close to the first, to adopt the Asian version of bicycle technology. Less expensive? Worked better? Who knows, but this early seventies one is French all the way, as nearly as I can tell...
And why is it in such nicely preserved condition...