A watch including a case (6) having a push-piece (8), movable in a radial direction, and a device (14) for locking the push-piece. The locking device includes a locking member (16) rotatably mounted about a central axis of the case and arranged to be actuated between a locking position, wherein the push-piece is stopped or blocked by the locking device so that the function cannot be activated by actuation of the control member, and an unlocking position wherein the push-piece is released and can then be actuated in said radial direction to allow the function to be activated. A rotating bezel (20) and the locking member are coaxial arranged so that they can each be rotatably actuated by the user independently of each other. Thus, the rotating bezel is independent of the locking function and can thus be dedicated to the chronograph mechanism and be in particular useful for diving.

A timepiece includes a locking device capable of blocking the translation of a valve or of a control member in the position the closest to the central axis of the case. The locking device includes a blocking element capable of undergoing translational displacement along a radial axis between a locking position and an unlocking position, where the member is respectively blocked or free to move in translation, a part mounted such that it can move in rotation about the central axis of the case and intended to be set in rotation by a user, drive device linking the angular displacement of the part mounted such that it can move in rotation to the translational displacement of the blocking element between the locking and unlocking positions.

A watch includes: a crown including a head portion and a shaft portion; a stem pipe including a first surface that includes an insertion hole through which the shaft portion is inserted and has a distance from a surface of the shaft portion as a first distance in cross-sectional view, and a second surface that is provided at a position closer to an end portion of the insertion hole than the first surface and has a distance from the surface of the shaft portion as a second distance larger than the first distance; a packing disposed between the surface of the shaft portion and the first surface; and a metal ring that is disposed between the surface of the shaft portion and the second surface and is in contact with the packing.

A screw-down orientable crown (200) for watch case (100), including a tube (11) that can be axially inserted into a case housing (90), and a handling body (1) including a pattern (19) and a relief (15) extending axially and, in the coupled position, cooperating for indexing the pattern (19) relative to the case (100) with a complementary relief (55) that a fixed pipe (5) includes which is pushed back from the body (1) by a spring (12) trapped therebetween, and, in the disconnected position by compression of the spring (12) remaining axially distant from the complementary relief (55) and without cooperation therewith, and including an axial stop means (3) fixed to the body (1) to axially trap the fixed pipe (5) with a stroke corresponding to the deformation of the spring (12) to enable the disconnection, by a compression of the body (1), between the relief (15) and the complementary relief (55), which relief (15) is carried by a trunnion (4) integral with the body (1) and which is inside the fixed pipe (5).

A timepiece is equipped with a case that includes a case middle, a pusher, and a locking device for this pusher. The pusher is arranged movably in a translational manner in an actuation axis. The locking device contains a blocker that is movable in a translational manner along the actuation axis and with the ability to be displaced between a locking position and an unlocking position, in which positions the pusher is respectively to the locking and unlocking positions blocked and free in translation. The locking device contains in addition a control rotatably mounted in a general plane of the case between a first position and a second position corresponding respectively to the locking and unlocking positions for the blocker, this control containing structure for driving the blocker between its locking and unlocking positions.

A timepiece includes a locking device capable of blocking the translation of a valve or of a control member in the position the closest to the central axis of the case. The locking device includes a blocking element capable of undergoing translational displacement along a radial axis between a locking position and an unlocking position, where the member is respectively blocked or free to move in translation, a part mounted such that it can move in rotation about the central axis of the case and intended to be set in rotation by a user, drive device linking the angular displacement of the part mounted such that it can move in rotation to the translational displacement of the blocking element between the locking and unlocking positions.

There is provided a crown lock mechanism-installed timepiece which enables a lock mechanism to regulate an operation of a crown by using a simple operation. A crown lock mechanism includes a winding stem, a crown, a lock screw ring, an extrusion spring, and a regulator. The winding stem is connected to a corrector lever of a movement. The crown is fixed to the winding stem. The crown is capable of engaging with the lock screw ring, and the crown is supported by the lock screw ring so as to be movable in an axial direction. The extrusion spring biases the lock screw spring toward the crown. The regulator regulates the lock screw ring to be located at a predetermined position against a biasing force of the extrusion spring, and holds the crown engaging with the lock screw ring so as to stay at a normal hand operation position.

Push-in watch crown mechanisms and methods are described. The push-in watch crown mechanisms include a locking mechanism for latching the watch crown inside the watch body such that the top of the watch crown is substantially flush to the edge of the watch body. Further, the push-in watch crown mechanisms include a release mechanism for unlatching the watch crown so that it is released outside of the watch body and accessible for use. Additionally, methods of using push-in watch crown mechanisms are described.

A watch case having a locking system for at least one control element of a timepiece, the locking system including a manipulable element, a locking element for the at least one control element, and a kinematic link linking the manipulable element to the locking element, the locking system being arranged on the outside of a chamber (63), more particularly on the outside of a water-resistant chamber, defined by the case, the locking element being rotatably mounted, more particularly rotatably mounted about a second axis (A1) of the at least one control element.

The mechanical timepiece movement with running reserve indication comprises at least one barrel system with a winding output connected to a winding wheel of a differential gear, and with an unwinding output connected to an unwinding wheel of the differential gear. It includes a locking wheel set driven in rotation by an intermediate wheel of the differential gear. The locking wheel set is connected to a running reserve indicator to display the running reserve. The locking wheel set includes a locking element for coming into contact with the unwinding wheel of the differential gear when the running reserve is at zero, in order to lock the timepiece movement.