The invention relates to a method for broadcasting an acoustic signal to the wearer of a watch, the method comprising a step of identifying an event relating to a function of this watch (1) as well as a step of sending a configuration signal relating to said identified event to a sound interface (3) of the watch (1) comprising a plurality of piezoelectric elements (4) mounted on at least one deformable support element (9), said plurality of piezoelectric elements and said at least one deformable support element (9) being able together to produce a sound.

A musical or striking mechanism (1) for a timepiece or musical box, includes an energy source (6) delivering a mechanical torque and device for transmitting mechanical torque from the energy source to a wheel set for generating music or a striking wheel set (4). The mechanism also includes a wheel set governor (2) configured to regulate, around a reference speed value, the pivoting speed of the wheel set about a pivot axis, and including a break for braking the wheel set configured to return the pivoting speed thereof to the reference speed. The wheel set governor includes a system having an electric generator (16) whereof a rotor is mechanically connected to the energy source delivering the mechanical torque, and an electronic circuit for regulating the rotation speed of the generator.

The invention relates to a method for broadcasting an acoustic signal to the wearer of a watch, the method comprising a step of identifying an event relating to a function of this watch (1) as well as a step of sending a configuration signal relating to said identified event to a sound interface (3) of the watch (1) comprising a plurality of piezoelectric elements (4) mounted on at least one deformable support element (9), said plurality of piezoelectric elements and said at least one deformable support element (9) being able together to produce a sound.