Apple just seeded the second beta of watchOS 4 to developers. We see this update two weeks after the first build. In this version we find a ton of new watch faces, as well as a change to the scrolling direction of the dock, and the ability to view the apps in a list view, rather than a honey comb.
To get this update developers can go to the Watch app and find it under software updates. If you’re not on the beta yet you can get the testing profile from the developer center.