To install the latest version of watchOS 2.2 beta on an Apple Watch, download the watchOS 2.2 beta Configuration Profile, iOS 9.3 SDK beta, and iOS 9.3 beta. Make sure to install iOS 9.3 beta on your iPhone before updating to watchOS 2.2 beta.
WatchOS 2.2 beta supports pairing multiple watches with an iPhone at a time; however, the iPhone must be running iOS 9.3 beta. The firmware also brings an improved Maps app with Nearby and shortcuts for navigating home and to work.
Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates on third watchOS beta.