The electric solar watch winder includes a rotating support, a motor arranged to drive the rotating support, an accumulator arranged to power the motor, a solar cell arranged to charge the accumulator, an internal clock, an electronic means of controlling the motor, a light sensor connected to the electronic means, and a user control interface for the electronic means. The electronic means is arranged to be controlled by the user to be selectively placed in one or other of a plurality of operating modes, the plurality of operating modes including a first mode in which the rotating support is only driven when the winding mechanism is illuminated and a second mode in which a rotating support drive program is started at a pre-selected time using the control interface.