Apple has today seeded watchOS 3.1.1. This comes one day after the update to all of the other operating systems and a little over one week after the second build. We’re unsure what’s new in this version. Likely bug fixes and other improvements. Since this is a smaller update, that’s all we expect.
To get this beta, developers can go to the Watch app and download it over the air. If you don’t have watchOS 3.1.1 yet you can go to the Apple developer center and get the testing profile.