Last summer I found the VERY best watch at the gift shop in the Contemporary. I did not see another one like it in any of the shops in MK or at World of Disney. Maybe it was just a fluke, but I would definitely look around, and check out the resort shops, before you buy. Also, remember that if you buy one, and then find a better one, you can return the first (with receipt) to any shop that sells watches. That is actually what I did, because I bought a different one first, then found the one I fell in love with.
Also, if you need to have the size of the watch band adjusted, there is someone at World of Disney in DD who does that. Just call to check what time he is there.