A magnetic microactuator (100) including a coil (6; 61; 62) controlling the axial movement of a sliding block (30) including at least one permanent magnet (2) joined or aligned with a ferromagnetic or magnetised rear arbor (42) and guiding the field lines of the magnetic field of revolution in the axial direction (D) through the coil (6; 61; 62) wherein circulates the sliding block (30), up to a rear end (43) of said rear arbor (42) that tends to cooperate by magnetic attraction with at least one first ferromagnetic restoration element (8), located in the vicinity of a rear face (25) of the structure (20) of the microactuator (100), in order to bring said sliding block (30) back into a rear end-of-travel position when no coil (6; 61; 62) is powered.

A device for winding automatic watches, including an electrical energy source and a receptacle support including a surface configured to receive in abutment a back cover of a watch, the device configured to generate a magnetic and/or electrostatic field or eddy currents, in a fixed position underneath the bearing surface and generate, on a substantially annular angular sector, a magnetic and or electrostatic field that varies as a function of time and whose direction is orthogonal to the bearing surface, or generating eddy currents that vary as a function of time. The device can be provided for a watch including an automatic winding mechanism with an oscillating weight including a first ferromagnetic inner part and a second heavy metal peripheral part, and possibly with a paramagnetic conductive disc coaxial to the oscillating weight.

A device for winding automatic watches, including an electrical energy source and a receptacle support including a surface configured to receive in abutment a back cover of a watch, the device configured to generate a magnetic and/or electrostatic field or eddy currents, in a fixed position underneath the bearing surface and generate, on a substantially annular angular sector, a magnetic and or electrostatic field that varies as a function of time and whose direction is orthogonal to the bearing surface, or generating eddy currents that vary as a function of time. The device can be provided for a watch including an automatic winding mechanism with an oscillating weight including a first ferromagnetic inner part and a second heavy metal peripheral part, and possibly with a paramagnetic conductive disc coaxial to the oscillating weight.

A magnetic microactuator (100) including a coil (6; 61; 62) controlling the axial movement of a sliding block (30) including at least one permanent magnet (2) joined or aligned with a ferromagnetic or magnetised rear arbor (42) and guiding the field lines of the magnetic field of revolution in the axial direction (D) through the coil (6; 61; 62) wherein circulates the sliding block (30), up to a rear end (43) of said rear arbor (42) that tends to cooperate by magnetic attraction with at least one first ferromagnetic restoration element (8), located in the vicinity of a rear face (25) of the structure (20) of the microactuator (100), in order to bring said sliding block (30) back into a rear end-of-travel position when no coil (6; 61; 62) is powered.

A watch assembly (2000) including a watch (1000), and a setting tool (200) driving an external drive mobile (20) so as to pivot around an external axis (DE) including an external multipolar magnet (21) engaging, to carry out a setting, with an internal multipolar magnet included by an internal control mobile (1) of the watch (1000) pivoting around a first axis (D1) and meshing with the entry of a reduction train (30) in which the exit meshes with an internal controlled mobile pivoting in the case (10), this setting tool (200) including means for counting the number of turns of the drive mobile (20) to precisely determine the pivot angle of the internal controlled mobile and/or means for determining and/or visualising the angular position of the internal controlled mobile.

A watch assembly (2000) including a watch (1000), and a setting tool (200) driving an external drive mobile (20) so as to pivot around an external axis (DE) including an external multipolar magnet (21) engaging, to carry out a setting, with an internal multipolar magnet included by an internal control mobile (1) of the watch (1000) pivoting around a first axis (D1) and meshing with the entry of a reduction train (30) in which the exit meshes with an internal controlled mobile pivoting in the case (10), this setting tool (200) including means for counting the number of turns of the drive mobile (20) to precisely determine the pivot angle of the internal controlled mobile and/or means for determining and/or visualising the angular position of the internal controlled mobile.