Hi David- Nice looking bike. I don't know much about the brand except that they were a major builder for other brands in the 80's, but it looks like you have a good-quality Japanese 80's steel. The non-aero brakes make me think nothing later that '85. VeloV is right, the RD is a replacement. The pedals are definitely non-original and, to most, an upgrade. If you're wondering about value, there's a separate forum here for that. IMHO: $125 as-is, $200 with an overhaul, maybe $225. The private label headset is a nice touch.

Simply out: Your components and bike a good quality but not a show stopper. Fix up and ride.