The ETA 2538 watch movement, dating back to approximately 1970, features a detached manual wind mechanism with an indirectly driven minute hand. This design enables a relatively large balance and low profile for the movement. Furthermore, the Type VS variant of this movement incorporates a single-part 0.6mm higher rotor. The movement houses various functions, including automatic winding, sweep seconds, day indication that can be set by changing the time to 20.40-24h, and a quickset date that can be adjusted by repeatedly pulling the crown.