Can we say stepper motor? There are many direct drive and geared steppers, those you can actually determine zero, step at any rate you desire, and have it rotate as many times as you like under program control. Tons of stepper motor drivers for Arduino as well as libraries to control stepper motors.
For cockpit panel instruments, before everything went digital, we used stepper motors to replace DC servos. We actually had real angle feedback on them, but it was still more cost effective and reliable than the DC servos with the pot.
