Originally Posted by
Antipodes
The serial number and its position fits Kuwahara's line of bicycles, and the frame and lug details seem to agree with this. Though they produced frames for quite a few companies and importers, my guess is that it is an Apollo, and judging by the details, perhaps a low-mid level model, maybe something like a Prestige or Prestige XL. The dropouts are not forged like on my Gran Sport, so we'll rule that out.
I can tell you, with some degree of certainty, that it is a 1981 model.
+1, I had a 83/84 Kuwahara that had the identical serial number format and it was located in the same location. Not sure which marketer had the OPS bike, but I'd bet it's a Kuwahara frame. BTW, the 78 Soma I just found, also made by Kuwahara also has the serial number located at the bottom of the seat tube.
EDIT: For $15, its a good find.