The standard ETA 2824 currently is made in 4 grades, Standard, Elaboré, Top, and Chronometre. There's a discussion of them here.
http://forums.watchuseek.com/f2/smoke-mirrors-part-1-eta-grades-explained-458060.html
It's not true that there are no loose movements out there to be had. The Swatch group has been trying to stop selling movements or repair parts to anyone outside of their company for a while now. There's a new agreement in place that has them selling fewer and fewer until 2020 when they are to quit selling them at all. So there are still brand new ETA movement out there for sale at materials houses and so on.
I've had the Chinese fakes of the ETA movements apart and had a good look at them. They just keep getting better as time goes on. They're still not nearly as well made as the genuine article. The patents on the ETA 28xx series of movements ran out years ago so now that Swatch has stopped selling movements and parts there are "clones" being made in Switzerland from Selitta and Soprod that are very good quality.