Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
They didn't choose to go with something other than "iWatch," they had to. "iWatch" is a trademark of another company.

I think they would have gone with Apple Watch regardless. This is clearly meant to appeal to "watch people" too. Arguably putting an "i" in front of a high end watch would give it a hint if kitsch, at least in the eyes of watch people.
 
They didn't choose to go with something other than "iWatch," they had to. "iWatch" is a trademark of another company.

So, for that matter, was iPhone. Cisco had a trademark on it.

I think the real reason is that Apple wants us to think of this as a piece of jewelry or clothing rather than a tech gadget. It's a watch that happens to have a bunch of technical capabilities, rather than being a gadget that you happen to wear on your wrist.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.