It looks like it has a good bit in common with my Steyr Clubman, which cost me five times as much! In addition to the intensely slack angles, the similarities appear to include the lovely sprung rubber saddle:



Are the derailleurs Eagle and Thunderbird? They seem so to my untrained eye. If so, that would be a very odd coincidence as that's what I put on my Clubman moving them over from a Nishiki donor bike, replacing plastic Simplex originals. I guess similar decade of production and price point tend to lead to similar components, but I would kind of expect European components.