A mechanism for stopping (100) or releasing a regulating or chronograph mechanism wheel (1) in rotation about a main axis (D), including a control organ (210) operable by a user and linked with a stopping lever (2) including a support surface (20) arranged to cooperate with a complementary support surface (11) of the wheel (1), and movable between a working position where any support surface (20) is distant from the complementary support surface (11), and a stopping position where a support surface (20) is bearing thereon. Also, a timepiece (1000) including regulating or chronograph mechanism including such a stopping mechanism (100).

A watch movement comprising a retrograde mobile, an hours ring bearing an asymmetric internal toothing and driven by the retrograde mobile in order to display the current hour in a jumping way, a correction mechanism allowing the retrograde mobile to be corrected in both directions, a drive member that can be actuated by said correction mechanism and engages with said asymmetric internal toothing so that corrections of the retrograde mobile in the clockwise direction are transmitted to the hours ring, whereas corrections in the counterclockwise direction are not transmitted to the hours ring.

A timepiece mechanism (100) for disengaging a gear train. The timepiece mechanism (100) includes a gear set (110), a disengagement member (120), a holding member (121) and a control member (130). The gear set (110) includes a first wheel (111), a second wheel (112) and an intermediate wheel (113) configured to be driven by or for driving the first wheel (111) and/or for driving the second wheel (112). The holding member (121) holds the first wheel (111) and/or the second wheel (112) when the disengagement member (120), controlled by the control member (130), moves the intermediate wheel (113) between an engaged position (101) and a disengaged position (102). Hence the timepiece mechanism (100) is held in position while disengaging the watch mechanism.

A regulating device including an oscillator and capable of blocking this oscillator carried by the carriage of a tourbillon or karussel, and including a stop wheel, coaxial to the carriage wheel and limited in angular mobility by a stop pin limited by a slot of the carriage, and including a toothing engaging with an external control member for the rotation thereof, the carriage carries a resilient element arranged so as to bear against a wheel set of the oscillator to stop the latter when the control member is in an active position, and to remain remote from the carriage and from any wheel set of the oscillator when the control member is in a rest position, wherein the stop wheel is in another angular position relative to the carriage wheel.

Disclosed is a mechanical movement including an information display device including at least one indicator member for the information, mounted pivoting about a pivot axis A. The movement encloses a cavity receiving at least the indicator member, the cavity being arranged so that the indicator member is housed entirely inside the movement. The movement includes at least one mobile arranged pivoting coaxially with the pivot axis A and including an outer peripheral toothing, the mobile being housed in the cavity and arranged to carry the indicator member. The mobile includes a felloe including the outer peripheral toothing and defining an inner opening, the felloe carrying an arm passing radially through the inner opening in order to be mounted pivoting on the pivot axis A, the indicator member being represented on the arm. Also disclosed is a timepiece including such a mechanical movement.

Indexing device (100) for a pull-out piece (10) for a timepiece, including an indexing member (4), and an indexing element (3) which has at least two sets of flanks (31a, 31b, 31c; 32a, 32b) for defining indexing positions of pull-out piece (10) and which is mounted on the indexing member (4), the indexing member (4) and the indexing element (3) being arranged or configured so as to define at least two positions, in particular at least two fixing positions, of the indexing element (3) on the indexing member (4).

A sympathetic timepiece assembly (1000), which includes a clock (100) and at least one watch (200) arranged to be deposited in a receptacle 150 included in the clock, in a single transfer position, this sympathetic assembly (1000) including a connection mechanism between the clock (100) and each watch (200) when the watch (200) is deposited in the receptacle 150 in the transfer position, this connection mechanism includes at least two separate transmission lines, one for transferring power or movement, and the other for selecting a function to be performed or a display variable to be adjusted.

A watch movement comprising a retrograde mobile, an hours ring bearing an asymmetric internal toothing and driven by the retrograde mobile in order to display the current hour in a jumping way, a correction mechanism allowing the retrograde mobile to be corrected in both directions, a drive member that can be actuated by said correction mechanism and engages with said asymmetric internal toothing so that corrections of the retrograde mobile in the clockwise direction are transmitted to the hours ring, whereas corrections in the counterclockwise direction are not transmitted to the hours ring.

A retrograde timepiece display mechanism for a watch including a wheel for displaying information, this display wheel being driven by a drive finger carried by a wheel driven by a horological movement, in order to change the information displayed by the retrograde timepiece display mechanism from one value to the immediately following value, this retrograde timepiece display mechanism including also an intermediate correction device to manually correct the information provided by the retrograde timepiece display mechanism by acting on a correction finger which drives the display wheel, the retrograde timepiece display mechanism also including a safety device arranged to allow blocking the intermediate correction device by preventing the correction finger from driving the display wheel during a period of time when the change in the information displayed by the retrograde timepiece display mechanism occurs and when the drive finger is engaged with the display wheel.

A balance wheel-hairspring oscillator (10) has a balance wheel shaft (18) intended to be pivotably mounted on a frame of a timepiece. A balance wheel (12) is secured to the balance wheel shaft (18). A hairspring (14) has an inner end (14a) secured to the balance wheel shaft and an outer end (14b) intended to be connected to a connecting member (16) to the frame. A transmission member (20, 22) is arranged to interact with an escapement. The balance wheel (12) and the hairspring (16) are arranged on either side of the transmission member.