As for Italian or Japanese? I have a Koga Miyata, Pro Racer 1976 (jap) and yesterday i got an Italian Bianchi Reparto X4 1987.
The Italian is ten years younger, however it is tighter on the Dutch paved roads.
The engraved Bianchi is very special, the forks are slim style, gear cables are guided through the frame.
This is the Pro racer
Koga-Miyata Pro-racer, 1976