No, this isn't even that. I tried to find some info on it a couple years ago and came up with nothing but a drawing of a robot riding one in a Japanese magazine article. It's a Miyata "California Road" and is made out of high tensile steel instead of Cr-Mo. 27" wheels too. Thought about converting it to 700 but not sure I want to put the money/time into it. It rides pretty well just seems a bit heavy. I'm sure alloy wheels would fix that.

Edit: forgot to mention that my father-in-law bought this bike when he was stationed in Japan around '78. As far as I can tell, this was never released to the US. Seems like a lower end frame being high tensile steel but seems to be a conundrum as it has nicer components like Shimano 60 front/600 rear derailer. Brazed lugged construction is nice though. If I'm not mistaken, this is before Miyata started making their own tubing, no?