The duality of Bauhaus and Art Deco is also evident in the movement: the special feature of the Sedius is, of course, the VH31 quartz movement from Seiko, which retains the reliability of a quartz watch, but at the same time has a sweeping seconds function like that of an automatic watch. This movement is also called a mecha-quartz movement.

For this purpose, the stepping motor of the quartz movement was modified so that it beats with 4 beats per second (2Hz).

The movement has a battery life of up to 24 months and a rate accuracy of ± 15 seconds per month.