A device (1000) for the winding and time-setting of a watch (1) with an oscillating resonator (2), which includes: an automatic winding mechanism (304) for a mechanical or automatic watch, which includes at least one watch reception support (305), a viewing system (1002), a stoppage monitor (500) to observe the stoppage of a resonator (2), and a controller (900) arranged to identify the stoppage time displayed by the watch (1) in the stoppage position thereof, to compute the time remaining until a synchronization between the actual time indicated by the clock (1001) and the stoppage time, and, when the remaining time has elapsed, to activate the automatic winding mechanism (304) for rewinding the power storage device of the watch (1).