Also the cushion cases... As for rarity, a B-case could be converted (except hands and crystal are dead giveaways), but the various cushion cases were all spaceviews. Also there is the Swiss (larger) chapter ring case
This guy again! He had been off ebay for a while. All his Accutrons are cobbled together S**T. Last I knew his buying account is something like alpha-omega girl I sold one to him under that name and it ended up converted to a Spaceview for sale through hfm. I kept pics of the serial number on the back so I knew for sure. I don't know about most desirable Spaceviews but this one could easily trump his cobbled together trash.