A method for determining an imbalance characteristic of a hairspring (5) balance (4) oscillator (3) of a timepiece movement (2), the method comprising at least the following steps: Setting the hairspring balance oscillator in an oscillating motion at at least two amplitudes, Determining, for each amplitude and for at least two positions of the oscillator, a piece of data representative of the oscillation period of the oscillator, Using the data from the previous step to calculate the imbalance characteristic of the hairspring balance oscillator.

Watch winding device, with a motor driving a winding operation, means for acoustic measurement of the oscillator of a watch in the winding position, control means analysing the signals transmitted by the measuring means 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 measuring means are fixed in a base behind an sensing opening of the acoustic sensor means, 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 determining parameters for adjusting a mechanical watch with an electronic device, including a measurement sensor a to measure a parameter to which the electronic device is subjected, and a device for data transmission to transmit the data provided by the measurement sensor to a device for receiving data which is external to the mechanical watch, the method including successively a step of measuring periodically, with the measurement sensor, the value of the physical parameter to which the electronic device is subjected; a step of transmitting the data provided by the measurement sensor to the external device for receiving data; a step of recording and analyzing the data transmitted to the device for receiving data with a view to deducing therefrom the conditions to which the electronic device is subjected, and a step of determining the parameters for adjusting the working of the mechanical watch as a function of the conditions of use.

A measuring support for a watch movement, designed to constitute a radial support, in a radial direction, of a control member or of a support zone, which includes a watch head including a watch movement, or which includes a watch movement enclosed in a test cap, in a position of radial support under stress of the watch head or respectively of the cap on the measuring support, wherein the measuring support includes either a single contact point in the radial direction, or a pair of lateral contact points that are symmetrical with respect to the radial direction.