An electronic timepiece includes an exterior case; an electronic module housed in the exterior case; a winding stem projecting from the electronic module to the exterior case; and a conductive earth member having a plate-like portion and an elastic portion extending from the plate-like portion to a winding stem side, in which the winding stem has a flange disposed between the electronic module and the exterior case, and the elastic portion is brought into contact with a surface of the flange on an electronic module side in a state where the winding stem is pushed into the electronic module.

An electronic timepiece includes an exterior case; an electronic module housed in the exterior case; a winding stem projecting from the electronic module to the exterior case; and a conductive earth member having a plate-like portion and an elastic portion extending from the plate-like portion to a winding stem side, in which the winding stem has a flange disposed between the electronic module and the exterior case, and the elastic portion is brought into contact with a surface of the flange on an electronic module side in a state where the winding stem is pushed into the electronic module.

A device case includes a resin case body having an opening which is disposed on a viewing face of the case body and a step which is disposed on an interior of the opening and protruding further to the interior than an inner face of the opening. The device case further includes a windproof member having an outer diameter smaller than an inner diameter of the opening of the case body and larger than an inner diameter of the step; and an adhesive section bonding and fixing the windproof member at a position to seal the opening of the case body. The adhesive section has higher flexibility than the case body.

An isothermal device (1) for mechanical and/or functional components (5) of a watch (10), including a case (2) provided with an enclosure (4) wherein a case (12) of the watch (10) can be removably arranged, a crystal (11) arranged facing a crystal (6) of the case (2), the device (1) comprising: a reversible fastening device (13) fastening the watch (10) case (12) in the enclosure (4) by keeping it away from functional elements (15) of the case (2), the elements (15) forming the enclosure (4) comprising a middle (9a), a back (9b) and the variable-opacity crystal (6) of the case (2), and a system (3) for dynamically controlling the temperature of the enclosure (4) comprising the variable-opacity crystal (6) and a control unit (8) configured to control the opacity of the crystal (6) of the case (2).

A Dewar device (1) for mechanical and/or functional components 5 of a watch (10), comprising a casing (2) provided with an enclosure (4) wherein a case (12) of said watch (10) can be removably arranged, said case being provided with a display device capable of displaying information relating to time indications or to functions implemented by the watch (10), said display device being arranged opposite a crystal (6) of said casing (2), the Dewar device (1) comprising a system (3) for dynamically adjusting the contrast of the display device of the watch (10) comprising said variable luminosity crystal (6) and a control unit (8) configured to control the contrast of said display device of the watch (10).

A contrast adjustment system (100) for a display device of a watch (10), the case (12) of which can be removably arranged in an enclosure (4) of a thermal protection housing (1) for mechanical and/or functional components (5) of the watch (10), the display device being arranged facing a crystal (6) of the housing (1), the housing (1) including a reversible fastening device (13) fastening the case (12) of a watch (10) in the enclosure (4) while keeping it away from functional elements (15) of this housing (1), the elements (15) forming this enclosure (4) including a middle (9a), a back (9b) and the crystal (6) of this housing (1), the system (100) including an electronic device (110) configured to adjust the contrast of the display device when the electronic device (110) and the housing (1) are connected to each other.

A Dewar device for mechanical and/or functional components of a watch, this device including a wristlet; a housing including a chamber wherein a case of the watch is capable of being disposed in such a way that a glass of this case is arranged facing a glass of a set of elements of the housing defining this chamber; at least one fastening device fastening this watch case in this chamber of the housing while maintaining it distant from this set of elements, and a device for actuating at least one control element of this watch by the movement in translation of an external parts element of the housing in the direction of a back of this housing.

A Dewar device is for mechanical and/or functional components of a watch. The device is provided with a wristlet and a casing. The casing includes a chamber in which a case of the watch is capable of being arranged in a removable manner, and a device for reversible fastening by magnetic levitation of the watch case in the chamber configuring a separation between the case and the set of the elements of the casing forming the chamber.

One aspect of the invention relates to a device (100) for maintaining or limiting the shake, in at least one direction, of a timepiece component (30), said device comprising a stationary structure (20) arranged to abuttingly receive at least one surface of said component (30), and a rotary bolt (10), cooperating with said stationary structure (20), the rotary bolt (10) being rotatable about an axial direction (A) between a first angular position, referred to as the unlocking position, allowing said component (30) freedom of movement and a second angular position, referred to as the locking position, limiting the travel of said component (30) relative to the stationary structure (20) in said at least one direction, characterised in that said second angular position, referred to as the locking position, of the rotary bolt (10) is secured by resilient return means (3).

A micro-electromechanical systems (MEMS) driving arrangement for an electronic device, the micro-electromechanical systems (MEMS) driving arrangement including a driven wheel; a driving actuation assembly for causing rotation of the driven wheel; an indicator assembly including an indicator; and a force absorbing assembly coupled intermediate the indicator assembly and the driven wheel; whereby a force acting upon the indicator assembly is absorbed by the force absorbing assembly so as to inhibit rotation of the driven wheel relative to the driving actuation assembly.