Along with macOS 10.12.2, Apple also released watchOS 3.1.1 for the Series 1 and Series 2 Apple Watch. However, after complaints from device bricking, Apple has since pulled the update. The watchOS 3.1.1 update was mostly about bug fixes and didn't add anything new, apart from the new emoji. However, after installing the update, some Apple Watch Series 2 users found their watches bricked, with a red exclamation mark and Apple Help website URL being displayed on screen. Since then Apple has stopped the roll out of the update, meaning if you hadn't updated yet you cannot anymore...
Source: http://www.gsmarena.com/apple_releases_watchos_311_pulls_it_after_bricking_complaints-news-22168.php
