A timepiece display mechanism with a resilient hand including a first and second device for driving, about an output axis, a first and a second pipe mounted at the ends of a flexible strip, and including a display index distant from the pipes, these drive devices being arranged to deform the flexible strip, by varying the angular position of one pipe with respect to the other about the output axis, and to vary the radial position of the display index with respect to this axis, this mechanism includes a first differential on the drive train of the first pipe, one input of which is formed by a first cam, and a second differential on the drive train of the second pipe, one input of which is formed by a second cam.

A retrograde display mechanism including a main plate and a rack pivoting on a first arbor about a first axis centring its toothing, and including a sensing element following a cam pivoting on a second arbor about a second axis, the position of the first pivot axis and/or of the second pivot axis is adjustable with respect to the main plate with an adjustment plate carrying the first arbor and/or respectively the second arbor, and movable with at least one degree of freedom with respect to the main plate whose position with respect to the main plate is adjustable by an adjustment control device or an eccentric screw secured to the main plate and cooperating with a notch in the adjustment plate, or vice versa.

A timepiece mechanism including a deformable rhombus including four coplanar segments pivotally connected in pairs by their vertices, including an input segment adjacent to an output segment, both pivoted about a pivot axis perpendicular to the plane of the rhombus and passing through a first vertex common to the input and output segments and locked in translation in the plane of the rhombus, a lever mounted to pivot about the pivot axis, the lever being kinematically connected in rotation, about the pivot axis, to a second vertex of the rhombus, opposite to the first vertex, a first locking member movable between a first locking position, in which the lever is locked in rotation, and a first unlocking position in which the first locking member does not hinder rotation of the lever, a second locking member movable between a second locking position, in which the second vertex is locked in translation in a radial direction, and a second unlocking position in which the second locking member does not hinder radial movement of the second vertex.

A timepiece drive mechanism including a structure on which pivots an arm subjected to the return torque of a first energy source, this arm carrying a planetary gear including a wheel, a second energy source subjecting to a return torque a third wheel set on which the wheel rolls, under the action of the first energy source, the structure carries a stop device cooperating with complementary a stop device of the third wheel set to hold the latter in position, which are uncouplable under the action of uncoupling control device of the arm at the end of the forward angular travel of the arm to allow the third wheel set to pivot in a single direction under the action of the second energy source, causing a backward rotation of the arm to its start-of-angular-travel position.

A timepiece movement with a regulating member which is a tourbillon or karussel, and including a drive mechanism, with a pivoting arm subjected to the restoring torque of a first energy source and carrying a mechanism comprising a wheel, a second energy source that subjects to a restoring torque a third wheel set on which the wheel rolls, under the action of the first energy source, the structure carries stop means cooperating with complementary stop means of the third wheel set to hold the latter in position, which are uncouple-able under the action of uncoupling control means of the arm at the end of the forward angular travel of the arm to allow the third wheel set to pivot in a single direction under the action of the second energy source, causing a backward rotation of the arm to the start of its angular travel.

A variable timepiece display mechanism includes a resilient hand with a drive pipe integral with a single-piece flexible strip including flexible segments joined at tips, a first segment thereof extends between the first pipe and a first tip. The mechanism also includes a driver for driving the pivoting of the pipe, and a stressor for stressing the first flexible segment in order to vary the position of the first tip relative to the output axis, as a function of the forces applied to the flexible strip. The drier and/or the stressor includes a first shaped gear train and/or a second shaped gear train in order to accelerate, stabilize the speed of, or slow at least the pipe over a part of the angular travel thereof.

A trigonometric function display clock includes a clock face that has a center aligned with a central axis, axial markings aligned with an x-axis and a y-axis, and a secondary circle having a diameter equal to a radius of the axial markings. A first point on the secondary circle is aligned at the center of the central axis, and the secondary circle is configured to be rotatable about the first point. The secondary circle is configured to overlap and align with at least a portion of the axial markings as the secondary circle rotates about the first point.

Mechanism for a watch movement (1) comprising a cam (5), a rack (3) driven by the cam (5), a retrograde mobile (20) driven by said rack (3) and bearing a retrograde indicator (2) for displaying a first item of time information, the rack (3) and the retrograde mobile (20) being arranged in such a way as to rotate in the same direction. A jumping hour display ring is synchronized with the returns of the retrograde display.

A timepiece display mechanism including at least a first retrograde drive device for a first display member displaying a first magnitude, and a second retrograde drive device for a second display member displaying a second magnitude, the first retrograde drive device including a first drive rack to exert on a first wheel set driving the first display member, an opposite force to a resistance force exerted by a first return rack, the second retrograde drive device including a second drive rack to exert on a second wheel set driving the second display member, an opposite force to a resistance force exerted by a second return rack, wherein the pivot axes of the first drive rack and of the first return rack are remote, and/or the pivot axes of the second drive rack and of the second return rack are remote.

A trigonometric function display clock includes a clock face that has a center aligned with a central axis, axial markings aligned with an x-axis and a y-axis, and a secondary circle having a diameter equal to a radius of the axial markings. A first point on the secondary circle is aligned at the center of the central axis, and the secondary circle is configured to be rotatable about the first point. The secondary circle is configured to overlap and align with at least a portion of the axial markings as the secondary circle rotates about the first point.