A watch winding device includes a motor driving a winding operation, an acoustic measurer of the oscillator of a watch in the winding position, and a controller analysing the signals transmitted by the measurer and comparing them to desired values that can be parameterized to regulate the operation of the motor by starting this motor when the operating amplitude of the oscillator is less than a minimum value, and by stopping this motor when the working amplitude is higher than a maximum value, these acoustic measurers are fixed in a base behind an sensing opening of the acoustic sensor. The device includes an acoustic duct which places a receiving port, located inside a chamber for housing a watch, in communication with a transmitting port movable by the motor facing this sensing opening.

A method for adjusting the operating frequency of an electronic watch via a computer application installed in a portable electronic device, the adjustment method including the following steps, performed by the computer application: generating a pulsed reference signal in the portable electronic device, converting the pulsed reference signal into a modulated optical signal consisting of light pulses, transmitting the modulated optical signal to the electronic watch via the light source or via a modulation of the light emitted by the screen of the portable electronic device, and the following steps, performed by the electronic watch: reconstituting the pulsed reference signal from the modulated optical signal received by the optical sensor, correcting an inhibition value stored in the memory of an adjustment circuit of the electronic watch as a function of the pulsed reference signal.

A method for adjusting the operating frequency of an electronic watch via a computer application installed in a portable electronic device, the adjustment method including the following steps, performed by the computer application: generating a pulsed reference signal in the portable electronic device, converting the pulsed reference signal into a modulated optical signal consisting of light pulses, transmitting the modulated optical signal to the electronic watch via the light source or via a modulation of the light emitted by the screen of the portable electronic device, and the following steps, performed by the electronic watch: reconstituting the pulsed reference signal from the modulated optical signal received by the optical sensor, correcting an inhibition value stored in the memory of an adjustment circuit of the electronic watch as a function of the pulsed reference signal.

A method for inspecting a spiral or a spiral blank arranged to form a spiral, the spiral having to exhibit at least one predetermined resonant frequency, the inspecting method including the following steps: a. applying to the spiral or to the spiral blank a time-varying vibrational excitation to cover a predetermined frequency range, b. identifying at least one characteristic of a resonant frequency, such as a resonance peak, of the spiral or of the spiral blank during the vibrational excitation over the predetermined frequency range, c. submitting to a predicting machine the resonant frequency characteristic identified in the step b. to determine a stiffness of the spiral or of the spiral blank and/or determine whether or not a dimensional correction of the spiral or of the spiral blank is necessary to obtain the predetermined resonant frequency.

A method for optimising an operation of setting and winding a watch or the timepiece movement thereof including initially making a measurement of the operation of the watch or of the timepiece movement followed by an activation of an operation of low-amplitude reciprocating movements of the watch or of the timepiece movement on said jig of the device, or initially implementing an activation of an operation of low-amplitude reciprocating movements of the watch or of the timepiece movement before making a measurement of the operation of the watch or of the timepiece movement, and resuming low-amplitude reciprocating movements in phase or a synchronisation step being implemented at the end of the first two steps. The first oscillating signal of movements includes a change in sign of the absolute rotation speed in each successive oscillation period, the oscillating signal having a positive part and a negative part of the operating speed.

A method for adjusting a rate of a timepiece after encasing a movement to ensure a better rate for the timepiece.

A method for authenticating a timepiece including measuring acoustic vibrations emitted by said timepiece to obtain an electrical signal, said electrical signal indicating a variation of a magnitude of said measured acoustic vibrations as a function of time, wherein said electrical signal comprises a plurality of acoustic events associated with mechanical shocks taking place in said timepiece, extracting from said electrical signal or from a representation of said electrical signal in a time, frequency or time-frequency domain at least one of a magnitude information on a magnitude of one of said plurality of acoustic events, time information on said one of said plurality of acoustic events, and a frequency information on a frequency of said one of said plurality of acoustic events, comparing said extracted information with at least one of a reference information, and deriving information on an authenticity of said timepiece based on the comparing.

A dynamic chronometric testing of a movement or of a watch, control device fine controlling a predefined or random cycle of movements via standardised chronometric testing positions, the rate parameters are also measured in dynamic positions where the acceleration and velocity are different to zero and which correspond to additional dynamic chronometry criteria, defined to qualify the rate during a continuous movement applied to the movement or respectively to this watch.

The method for test the rate of an electronic watch with a time base device (1) comprises three main steps for the test on test equipment. The time base device comprises at least one watch module (2) with a resonator (3) connected to an oscillator of an electronic circuit (4), which is followed by a divider circuit, which is controlled by an inhibition circuit, and which provides a divided timing signal for a motor. In a first step, a measurement is made of the frequency of the oscillator reference signal in at least one measurement period without inhibition. A second step is provided for acquiring the current inhibition value to inhibit a certain number of clock pulses in a subsequently inhibition period and to determine the inhibition value. Finally, a third step is provided for calculating the corresponding rate frequency of the watch.

A balance wheel (15) for a clockwork resonator mechanism (1), including a main arm (6) arranged along a longitudinal axis, the balance wheel (15) including at least a first lateral weight (11) for adjusting the inertia of the balance wheel, the first lateral weight (11) being mounted so as to be able to move on the main arm (6) of the balance wheel (15) so as to be able to adopt a plurality of positions more or less close to the main arm (6) in order to adjust the inertia of the balance wheel (15). Also, a method for developing the resonator mechanism.