One thing I have not seen anyone mention is that the Cuff can be used as Cuff, single tour (removing the cuff), or regular stainless steel (removing the whole band). I like the versatility of the Cuff.
Also, the Hermes Cuff watch has little details that are NOT the same like the regular stainless steel. Some have been mentioned, like the box obviously, the engraving in the back, the faces, but I would add:
The pairing logo in orange.
it also has that special singular color in different faces that is only available for the watch, like the Editions. (And I believe is Hermes Orange)
The crown has the center in black stainless steel.
I don't know if there are any more.