To install watchOS 2.2.2 on your Apple Watch, use your iPhone running iOS 9 to update the software on your Apple Watch.
Apple also released the second beta of tvOS 9.2.2 to developers for testing. The build number is 13Y816 -- compared to build 13Y807 of the previous seed.
This is a beta version of tvOS for the new Apple TV. Apple TV (3rd generation) and earlier are not supported. Download the Restore Image to update your Apple TV through iTunes on your Mac or download the Configuration Profile for over-the-air updates through Apple Configurator.
You can download tvOS 9.2.2 beta 2 from here. To update your Apple Watch to watchOS 2.2.2 beta 1, you must first install the iOS 9.3.3 beta.
Apple also released the second beta of iOS 9.3.3 and OS X El Capitan 10.11.6 today.
Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.