They said they wouldn't post numbers 9 months before launch. Time you change your disk, it's skipping.
During the earning call he said all growth in the other category was because of the Apple watch (1.776B (that would give about 4.5M watches), considering both the AppleTV and the Ipod had heavily falling sales prior to refresh (apple tv prices were even slashed), the number is certainly much higher than that. It has been estimated at around 7M.
Why is that plausible?
During the first earning calls 3 month earlier, he said it sold faster than the Ipad up to that point; considering the number of Ipad sold at that point is known and around 3.2M, that was a pretty good indication that it's significantly more than that once actual presence in store began.
Why believe him? Because he can be held personally liable for what he says in those earning calls, unlike all the two bit commentator all over the internet.
Considering the watch has now a much wider distribution both in outlet and in countries, the chance that it has reached 7M already is damn pretty good.