I picked up a 1968 Sutton 10 speed the other day from a guy on Craigslist. Serial number looks like 2R(or 3?)681(or 4?)24. The guy said he traded for it at a swap meet and that's all he knew. Couldn't find much more online except that maybe it was a Japanese model sold though Royce Union.

My plan is to restore/upgrade it for my wife to ride. I was wondering if anyone could tell me more about it, I'm interested to know what parts are original or not. Based on the condition of the rims the bike seems like it's hardly been ridden.