I'm using Xcode 6.3.2 (6D2105) but when i try to create a project for or with the watchKit there is no template for watchKit or the apple watch. What do i need to download or install in addition to create project for the apple watch?
You don't start a new WatchKit project, per se. WatchKit apps are simply another target bundled into your iOS app.
After you have created your iOS project, you can go to File > New Target and select WatchKit app.