the only vintage one i have seen and ridden was the older dark purple one. from what i remember being told about it (and according to the decals on it) they were olympic bikes, early 80s. the one i had ridden and kept in my apartment for a few nights had full superbe group, and was really really nice. the junction of seatstays/top tube/seattube was really intersting. the cap of the seatstay sort of looped over, rather than stopping, and the back of it where the bolt goes was beefy and blocked off like a square. never seen anything like it. i think one of those old dark purple ones (with the olympic rings and superbe gruppo) sold on ebay awhile ago for like 800$ or so.

probably on par with the nice old panasonic trackbikes of the same era. great, light, lugged steel, classy, japanese. way to go, that's a pretty bike!