The Forster 190 watch movement is a gents automatic-family movement with a ball-bearing rotor. It was introduced between 1950 and 1954 and underwent changes during this period, including the shift from T- to U-shock device and modifications to the calibre. Different variants of the movement were produced, but it is uncertain if all calibres were made in the TC variant. Signatures of UT versions were also changed to UC. The movement features a detachable manual wind and offers functions such as automatic winding, sweep seconds, and a date display.