Terms are pretty meaningless. Just examine the specs and pictures, and compare as needed to gen's, or other high end versions here on the forum. There was a PT prototype 1665 that was released about 6 months ago as well, and lets just say-- best is not how many would describe it. These prototypes are however are a step in the right direction as they do tend to mimic the original construction of the gen in terms of bezel, crystal, retaining rings, etc -vs- one piece case with glued inaccurate crystals. They can provide a cheap base for mods. Also, 1:1 is usually more like 0.95:0.95.
I am waiting for them to begin using Apple marketing terms next: Magical, Wonderful, Best way to tell time, Revolutionary....