A portable electronic device (wrist device) includes: a case (top case and bottom case); a display unit accommodated in the case; a cover plate closing an opening of the case; and a moisture absorbing member disposed along an outer edge of the display unit between the cover plate and the display unit.

A portable electronic device (wrist device) includes: a case (top case and bottom case); a display unit accommodated in the case; a cover plate closing an opening of the case; and a moisture absorbing member disposed along an outer edge of the display unit between the cover plate and the display unit.

A Dewar device (1) for mechanical and/or functional components (2) of a watch (3), the device (1) being provided with a bracelet and a casing (4) including an enclosure (5) in which a case (6) of the watch (3) is capable of being arranged and at least one fastening device (7) fastening the case (6) of the watch (3) inside the enclosure (5) of the casing (4) while keeping it away from the set of elements (10a, 10b, 10c) of the casing (4) defining this enclosure (5), the set (10a, 10b, 10c) including at least one transparent external element (10a) made of a transparent ceramic material, in particular a transparent polycrystalline ceramic material.

A Dewar device (1) for mechanical and/or functional components (2) of a watch (3), the device (1) being provided with a bracelet and a casing (4) including an enclosure (5) in which a case (6) of the watch (3) is capable of being arranged and at least one fastening device (7) fastening the case (6) of the watch (3) inside the enclosure (5) of the casing (4) while keeping it away from the set of elements (10a, 10b, 10c) of the casing (4) defining this enclosure (5), the set (10a, 10b, 10c) including at least one transparent external element (10a) made of a transparent ceramic material, in particular a transparent polycrystalline ceramic material.

One aspect of the invention relates to a horological assembly (2000) including a watch (1000) and an adjustment tool (200) for driving, without direct contact, a first mobile (1) internal to the watch (1000) throughout its case, for adjustment and/or recharging, the adjustment tool (200) including first magnetic areas (210) cooperating in attraction or repulsion with the first mobile (1) which is pivotably and axially movable about a first axis (D1) against an elastic return means (5) fastened to the case (10), between an active position in which the adjustment tool (200) draws the first mobile (1) towards an end-of-travel surface (6) in an engaged position with a second mobile (7) inside the case (10), and an inactive position in the absence of the adjustment tool (200) and in which the elastic return means (5) keeps the first mobile (1) disengaged from the second mobile (7).

One aspect of the invention relates to a horological assembly (2000) including a watch (1000) and an adjustment tool (200) for driving, without direct contact, a first mobile (1) internal to the watch (1000) throughout its case, for adjustment and/or recharging, the adjustment tool (200) including first magnetic areas (210) cooperating in attraction or repulsion with the first mobile (1) which is pivotably and axially movable about a first axis (D1) against an elastic return means (5) fastened to the case (10), between an active position in which the adjustment tool (200) draws the first mobile (1) towards an end-of-travel surface (6) in an engaged position with a second mobile (7) inside the case (10), and an inactive position in the absence of the adjustment tool (200) and in which the elastic return means (5) keeps the first mobile (1) disengaged from the second mobile (7).

A method for adapting a timepiece movement includes measuring a loss of energy for each free oscillation of the balance at atmospheric pressure; measuring the loss of energy for each free oscillation at a given low pressure corresponding to a working pressure intended for a modified movement; using i) the measured loss of energy at atmospheric pressure and ii) the measured loss of energy at the given low pressure, determining a percentage of energy gain of the balance between respective i) measurements of the measured loss of energy at atmospheric pressure and ii) measurements of the measured loss of energy at the given low pressure; and reducing a torque delivered to the escapement by a value corresponding to the determined percentage of energy gain.

A method for adapting a timepiece movement includes measuring a loss of energy for each free oscillation of the balance at atmospheric pressure; measuring the loss of energy for each free oscillation at a given low pressure corresponding to a working pressure intended for a modified movement; using i) the measured loss of energy at atmospheric pressure and ii) the measured loss of energy at the given low pressure, determining a percentage of energy gain of the balance between respective i) measurements of the measured loss of energy at atmospheric pressure and ii) measurements of the measured loss of energy at the given low pressure; and reducing a torque delivered to the escapement by a value corresponding to the determined percentage of energy gain.

The invention relates to a watch (2) according to the preceding claim, characterised in that it comprises a bracelet (4) and a watch case (6) including at least one electrical or electronic component (8a-8g), said watch comprising at least one Dewar device (10) configured to enclose at least one of said electrical or electronic components (8a-8g), said at least one Dewar device (10) including inner and outer walls (12a, 12b) and a vacuum or quasi-vacuum space (16) defined between these called walls (12a, 12b), the inner wall (12a) delimiting a volume (14) in which said at least one electrical or electronic component (8a-8g) is likely to be arranged, said watch (2) comprising an optical filtering element (22) defined in all or part of a particularly visible outer face of said case (6), said filtering element being capable of transmitting only the visible electromagnetic spectrum.

The invention relates to a watch (2) according to the preceding claim, characterised in that it comprises a bracelet (4) and a watch case (6) including at least one electrical or electronic component (8a-8g), said watch comprising at least one Dewar device (10) configured to enclose at least one of said electrical or electronic components (8a-8g), said at least one Dewar device (10) including inner and outer walls (12a, 12b) and a vacuum or quasi-vacuum space (16) defined between these called walls (12a, 12b), the inner wall (12a) delimiting a volume (14) in which said at least one electrical or electronic component (8a-8g) is likely to be arranged, said watch (2) comprising an optical filtering element (22) defined in all or part of a particularly visible outer face of said case (6), said filtering element being capable of transmitting only the visible electromagnetic spectrum.