The level of eta movement. Eta movement is a movement provided by eta Watch Factory for watches. The movement refers to the accessories installed inside the watch case to support the movement of the hands, which is the core part of the watch. R 1 represents the level of eta movement. As the cornerstone of Swatch, the history of ETA movement can be traced back to the watch factory established in 1793 at the end of the 8th century. /kloc-in 0/855, another factory was opened to manufacture "Ebauches (semi-finished watch core)". It was later named ETA, and it is one of the largest manufacturers of watches and movements in the world.