What do the numbers on motors mean (How do I read them?)
Taking a few guesses here, but:

100-120V~: operating voltage, "~" (tilde) indicates AC voltage

50-60Hz: operating AC frequency

4W: power consumption (maximum stall perhaps?)

CW/CCW: works in both ways (clockwise and counterclockwise.) This usually means it is a synchronous motor, and its direction depends on either the sign of the incoming AC waveform, or whichever direction has the least torque - in other words, it's more or less random.