Is the EAA based on the CZ-75, by any chance? It sure reminds me of one in these pictures, at least?
The small frames (9, 40, etc) are CZ-75 clones. The large frames (45, 10mm) are still very close to CZ-75 clones and significantly smaller than CZ's own large frame, the CZ-97.
That Witness Hunter is a sweet gun. There are a bunch of other very nice high end Witness models too.