Wristwatch comprising a mechanical device for executing a first mechanical function arranged to produce a first acoustic alarm signal, and an electronic device housed in a bracelet and arranged to produce a second acoustic alarm signal and/or a mechanical vibration, wherein the electronic device is arranged to produce the second acoustic alarm signal at the moment when the mechanical device for executing the first mechanical function produces the first acoustic alarm signal.

Wristwatch comprising a mechanical device for executing a first mechanical function arranged to produce a first acoustic alarm signal, and an electronic device housed in a bracelet and arranged to produce a second acoustic alarm signal and/or a mechanical vibration, wherein the electronic device is arranged to produce the second acoustic alarm signal at the moment when the mechanical device for executing the first mechanical function produces the first acoustic alarm signal.

Chiming timepiece comprising a movement and an acoustic indication mechanism with a control mechanism controlling the performance of a chime or tune by setting control lifts in motion that each actuate a hammer arranged to strike a gong, and each control lift is releasable between a released position, in which it is decoupled from the control mechanism, and a resting position, in which it is able to be driven for actuation of the hammer by the control mechanism that is set in motion by the movement, or by a manual actuator, and tune selection devices for the selection of at least one particular chime or tune are controlled by this movement or by a manual selector and control the passage of each control lift from its released position to its resting position or vice versa.

A mechanical isotropic harmonic oscillator including a frame, a mass configured to oscillate, and three flexure rods, each flexure rod connecting the mass to the frame.

The mechanical movement includes a checking device which is a passive indicator element. The passive element is fixed to a fixed support portion of the mechanical movement. The passive element may be a strip or a plate fixed to the fixed support portion of a regulating member and configured to vibrate according to one or more clearly defined vibration frequency components following the vibration of the mechanical movement. The vibration frequency components of the strip or plate define an acoustic signature specific to the timepiece to allow the authenticity of the timepiece to be determined by a measurement of the acoustic signature using an acoustic measuring system.

The present invention discloses an acoustic module waterproof protection mechanism, including an acoustic module arranged in a housing, an acoustic port provided on an outer wall of the housing and communicating with the acoustic module, a waterproof sound-permeable membrane arranged on an inner wall of the housing and covering the acoustic port, the an acoustic module waterproof protection mechanism further includes a waterproof valve assembly embedded in a hole wall of the acoustic port in a stretchable manner, which is used to stretch into the acoustic port to block the acoustic port when an external water pressure is greater than an air pressure in the housing.

A watch case for a wristwatch with a musical or ringing mechanism, the case being configured to comprise an acoustic membrane held by its periphery at a bottom of the watch case The watch case comprises a cover comprising a bottom. The cover is articulated mounted between an open position and a closed position in which the bottom of the cover covers an outer face of the acoustic membrane so as to ensure that the membrane can vibrate freely. The watch case further comprises at least one sound diffusion opening

A watch case for a wristwatch with a musical or ringing mechanism, the case being configured to comprise an acoustic membrane held by its periphery at a bottom of the watch case The watch case comprises a cover comprising a bottom. The cover is articulated mounted between an open position and a closed position in which the bottom of the cover covers an outer face of the acoustic membrane so as to ensure that the membrane can vibrate freely. The watch case further comprises at least one sound diffusion opening