As part of Apple's Q1 2015 conference call, Tim Cook announced that the Apple Watch would be shipping this April. That's in keeping with Apple's previously announced "early 2015" timeframe. (Cook explained Apple sees January to April as "early", May to August as "mid", and September to December as "late".)
From our Apple Q1 2015 transcript:
Development for Apple Watch is right on schedule, and we expect to begin shipping in April. Developers are hard at work on apps, notifications, and information summaries that we call Glances, all designed specifically for the Watch's user interface. The creativity and software innovation going on around Apple Watch is incredibly exciting, and we can't wait for our customers to experience them when Apple Watch becomes available.
My expectations are very high on it. I'm using it every day, and loving it, and I can't live without it. And so I see that we're making great progress on the development of it. The number of developers that are writing apps for it are impressive and we're seeing some incredible innovation coming out there.
And just to clarify, what we had been saying was early 2015, and we sorta look at the year and think of "early" is the first four months, "mid" is the next four months, and "late" is the final four months. To us, it's sort of within the range, so it's basically when we thought.
But most importantly, we're going to be thrilled to start shipping it, because we've got a lot of customers that are wanting to get one.
Indeed! Now feel free to start guessing when in April the Apple Watch will ship.