Apple Watch now available for sale, back-ordered until June

Good news as you can still order for Apple watch till June.
According to Apple Store the first Watch orders will begin shipping in June. This is about two months from now.

Fortunately, the Apple Watch is available for testing and exploring at Apple Store Retail, so at least you can see it live before making a decision. Apple also included a detailed sizing guide, for those of you who can't go to an Apple Retail Store.
You can learn more about the Apple Watch editions at the official Apple Store page. If you want one, you should hurry up as the shipping may soon change to July or August. Hopefully Apple won’t introduce a successor this September.