[QUOTE=BlackFoxSees;16148286]
S#: Y79 - 0507051


I believe it's a 1979, based on the serial number and components. Sekai seems to have used a pretty straightforward serial system, which I guess they altered between the late 70's and '81. I'm under the impression that most of the components are original, but a mechanic suggested that the brakes aren't.
/QUOTE]

I strongly believe your bike frame was built in 1979