Classic & Vintage - Crystal Bicycles??

I am cleaning up and restoring my dad's Crystal bicycle and started wondering about the brand Crystal. I know it is a Japanese bicycle, but that's about it. I searched all over online, but I can't find any information on them. I am just curious about the company and the bikes they made. I know my dad bought the bike brand new when he was in college in the early 70s for $180 from a bike shop so I thought it must be at least a decent brand. I was hoping you guys could enlighten me on these bikes.

Brand not found on the internet = private label brand. Most of the private label stuff in the early 1970s was low end, bike shops typically had waiting lists to buy bikes. By the 1980s, some of the private label stuff was pretty good.

Without more details and pictures, no idea. But the mystery brands from the 1970s typically were private label, low end. And during the early 1970s, it was not uncommon to see really low end stuff at a bike shop. they could sell anything they could get their hands on.

Thanks for the info. I will try to post pictures. After looking at it more and noticing that the brakes and crankset are unmarked it does seem pretty low end, but I don't want to tell my Dad that. The bike rides nice though.

Most cheap Japanese bikes were actually pretty good and parts, original or upgrade, are easy to find.