A timepiece mechanism (800; 800′) for correcting a timepiece function, comprising a first lever (14) comprising a first cam desmodromic connecting element (14a), a correcting mobile (404), and a second lever (402), the second lever (402) including at least one first element (402d) for guiding the correcting mobile (404), at least one first friction element (402b) in contact with the correcting mobile (404), and a second cam desmodromic connecting clement (402a) provided to cooperate by contact with the first cam desmodromic connecting element (14a).

A running equation of time mechanism includes civil hour and minute hands to indicate civil time and a concentric true minute hand to indicate true time. The running equation of time mechanism includes an equation of time cam and a differential gear device, a first input of which is formed by a civil minute pipe on which a civil minute hand is pressed, and a second input of which is formed by the equation of time cam. The differential gear device includes a planetary reducer wheel set via which the civil minute pipe drives a civil hour pipe on which is pressed the civil hour hand, and a planetary multiplier wheel set via which the civil hour pipe drives a true minute pipe on which is pressed the true minute hand.

A running equation of time mechanism includes civil hour and minute hands to indicate civil time and a concentric true minute hand to indicate true time. The running equation of time mechanism includes an equation of time cam and a differential gear device, a first input of which is formed by a civil minute pipe on which a civil minute hand is pressed, and a second input of which is formed by the equation of time cam. The differential gear device includes a planetary reducer wheel set via which the civil minute pipe drives a civil hour pipe on which is pressed the civil hour hand, and a planetary multiplier wheel set via which the civil hour pipe drives a true minute pipe on which is pressed the true minute hand.

A timepiece includes at least one time-of-day hand rotatable relative to a first dial and a first pair of temporal calendar mechanical elements independently rotatable relative to each other, and relative to the at least one time-of-day hand. Controlled rotation of the respective temporal calendar mechanical elements is synchronizable relative to temporal calendar information on an external device.

A timepiece includes at least one time-of-day hand rotatable relative to a first dial and a first pair of temporal calendar mechanical elements independently rotatable relative to each other, and relative to the at least one time-of-day hand. Controlled rotation of the respective temporal calendar mechanical elements is synchronizable relative to temporal calendar information on an external device.

A date display device (10) including: a dial (11) including date indications in the form of a character scale (15), of which a part is of apertures (150), a mobile index (12) with respect to the dial (11); a date mechanism configured to move the index (12) by one step per day, such that each position occupied by the index (12) denotes one of the characters (15); and a mobile element (13) arranged between the dial (11) and the date mechanism having on a surface facing the dial, a portion of interest (131), the mobile element being linked with the date mechanism such that the latter drives it in an active position, wherein the portion of interest is visible through the aperture (150) and in a rest position wherein the portion of interest is set back from the aperture and wherein a marking zone (160) is visible through the aperture.

A timepiece display mechanism with an instantaneous jump function, including a Maltese cross mechanism with an annular ring controlling, in part of its travel, the pivoting of a planet wheel set and driven by a timepiece movement via a cam wheel set arranged to move the annular ring from an activated position to a deactivated position in an instantaneous displacement in order to pivot a planet wheel set, and vice versa in a controlled return slower than the instantaneous displacement, the cam wheel set includes a coaxial cam and plate including a slot for driving an eccentric finger of the cam which controls the pivoting of a driver driving the annular ring between two extreme activation and deactivation positions, the slot allowing a clear jump of the driver in the deactivation position, and a longer reactivation time.

An audio device includes a thin film material having a capacitive property, the thin film material including an acoustic sheet having a curved shape, in which the acoustic sheet includes a first region that is actively driven by an input signal and a second region that is not actively driven by the input signal and the first region is formed in at least a part of an outside of the second region.

An audio device includes a thin film material having a capacitive property, the thin film material including an acoustic sheet having a curved shape, in which the acoustic sheet includes a first region that is actively driven by an input signal and a second region that is not actively driven by the input signal and the first region is formed in at least a part of an outside of the second region.

An electronic watch includes memory that stores a reference time and a time difference relative to the reference time, a timekeeper that clocks the reference time, a time display unit that includes an hour hand displaying a display time based on the reference time and the time difference, a calendar display unit that displays a date based on the reference time and the time difference, an operation device that includes a crown or a button, and a controller that, in a set time-difference setting range, corrects the time difference at a regular interval for each of operations of the operation device, and updates the hour hand and the date in accordance with the corrected time difference.