A timepiece assembly including a combined resonator with at least two degrees of freedom which includes a first linear or rotary oscillator with reduced amplitude in a first direction relative to which oscillates a second linear or rotary oscillator with reduced amplitude in a second direction substantially orthogonal to the first direction. The rotary oscillator includes a second weight carrying a sliding-block. A wheel set is arranged for application of a torque to the resonator, the wheel set including a groove in which the sliding-block slides with minimal play. The sliding-block is arranged at least either to follow curvature of the groove when present, or to rub with friction in the groove, or to repel the inner lateral surfaces of the groove by magnetically or electrically charged surfaces in the sliding-block.

A timepiece assembly including a combined resonator with at least two degrees of freedom which includes a first linear or rotary oscillator with reduced amplitude in a first direction relative to which oscillates a second linear or rotary oscillator with reduced amplitude in a second direction substantially orthogonal to the first direction. The rotary oscillator includes a second weight carrying a sliding-block. A wheel set is arranged for application of a torque to the resonator, the wheel set including a groove in which the sliding-block slides with minimal play. The sliding-block is arranged at least either to follow curvature of the groove when present, or to rub with friction in the groove, or to repel the inner lateral surfaces of the groove by magnetically or electrically charged surfaces in the sliding-block.

The mechanical timepiece movement includes at least one barrel, a set of gear wheels driven at one end by the barrel, and an escapement mechanism of a local oscillator with a resonator in the form of a sprung balance and a feedback system for the timepiece movement. The escapement mechanism is driven at another end of the set of gear wheels. The feedback system includes at least one precise reference oscillator combined with a frequency comparator to compare the frequency of the two oscillators and a mechanism for regulating the local oscillator resonator to slow down or accelerate the resonator based on the result of a comparison in the frequency comparator.

The mechanical timepiece movement includes at least one barrel, a set of gear wheels driven at one end by the barrel, and an escapement mechanism of a local oscillator with a resonator in the form of a sprung balance and a feedback system for the timepiece movement. The escapement mechanism is driven at another end of the set of gear wheels. The feedback system includes at least one precise reference oscillator combined with a frequency comparator to compare the frequency of the two oscillators and a mechanism for regulating the local oscillator resonator to slow down or accelerate the resonator based on the result of a comparison in the frequency comparator.

The regulating system includes a mechanical first oscillator (100) designed to regulate at least partly a train (82) of a timepiece movement (2000) driven by a drive system (81), a device (600) configured to impose a main operating mode in which the mechanical first oscillator (100) oscillates at a first predetermined frequency (f1), the control device (600) being controlled by a train (82) at least partly regulated by the first oscillator (100), and an actuator device (500) configured to command passage to an auxiliary operating mode in which the mechanical first oscillator (100) oscillates at another predetermined frequency (f2, f3) different from the first frequency (f1).

The method for determining, in particular for calculating, a reference value of an oscillator in a clock movement includes: setting the oscillator into oscillation with respect to a frame of the clock movement; positioning the clock movement in a plurality of predetermined positions with respect to the direction of Earth's gravity; determining, for each position, a piece of data relating to the reference frame of the oscillator; andusing the determined piece of data to determine a value of the reference frame of the oscillator, in particular an oriented value of the reference frame and/or a function defining the oriented value of the reference frame according to the position of the clock movement with respect to the direction of Earth's gravity.

The method for determining, in particular for calculating, a reference value of an oscillator in a clock movement includes: setting the oscillator into oscillation with respect to a frame of the clock movement; positioning the clock movement in a plurality of predetermined positions with respect to the direction of Earth's gravity; determining, for each position, a piece of data relating to the reference frame of the oscillator; andusing the determined piece of data to determine a value of the reference frame of the oscillator, in particular an oriented value of the reference frame and/or a function defining the oriented value of the reference frame according to the position of the clock movement with respect to the direction of Earth's gravity.

An electronically controlled mechanical timepiece includes: a mainspring; a train wheel that transmits mechanical energy of the mainspring; hands; a governor; a controller that controls the governor; a generator that converts the mechanical energy into electric energy; first and second power storage devices that stores electric energy; and a connection circuit that connects the first and second power storage devices in parallel. The connection circuit is switched to: a first state, in a first case, in which the first and second power storage devices are connected; a second state, in a second case, in which the first and second power storage devices are connected in a state in which an amount of electric charge transfer per unit time is smaller than that in the first state; and a third state, in a third case, in which the first and second power storage devices are disconnected from each other.