An electronically regulated watch movement comprising a time-wheel mechanism driven by a drive, a generator being coupled to the drive via at least a portion of the time-wheel mechanism and with substantial gear reduction. The generator includes a rotor with magnets and coils for producing a.c. voltage at a frequency of operation FG. An electronic regulating circuit is connected to the generator and includes an oscillator for producing a precise reference frequency FR and a comparator having inputs receiving frequencies FR and FG to compare the same. A power source is connected to the comparator and the generator to supply current to the generator when FG > FR to brake the generator until FG = FR and thereby provide a regulated operation of the time-wheel mechanism.