Both the 1988 and 1989 Bianchi models used the same decals style, at least in the USA.

Assuming a 1988, USA market, Campione d'Italia, what's correct is the S/N and colour. What's wrong are the derailleurs, crankset and Cromor decal.

Assuming a 1989, USA market, Campione d'Italia, what correct is the Cromor decal and possibly the crankset. What's wrong are the derailleurs, S/N and colour.

So there's no exact match. I'd be leaning towards 1988 on the basis of the frame's serial number and colour. Also, the Cromor decal is the 1987 version and not what I'd expect on a 1989 model, given that Bianch didn't even start using Cromor until 1989. Consequently, there would be no reason for the old style Cromor decal to be hanging around the factory. The derailleurs and crankset were likely changed out to make it more Italian, as the OEM components were Japanese and French respectively.