Didn't know there was a Japanesemade repro?
The Meopta are close to being a new-build original, in that Meopta was the post-WW2 company formed from several pre-WW2 and WW2 era companies which included Optikotechna (dow) who were one of the contractors that made the ZF4 scope during WW2, and have access to original documentation to re-create them, plus even some of the original equipment. They use modern coated lends etc though, and some other tiny changes to differentiate them from originals so they can't be sold as such.
They are supposed to be very good scopes.