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), and including an axial stop (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 shock-proof device (200) for a movement configured to allow the movement of the horological movement (210) along at least three degrees of freedom. The shock-proof device (200) includes at least one damping element (230) configured to damp the shocks of the horological movement (210) and a crown (100) configured to move between a first position (101) wherein the horological movement (210) is free along at least three degrees of freedom and a second position (102) wherein the horological movement (210) is rigidly connected to the crown (100).

A crown/pusher including a tube attached to a watch case, a recessed head integral with a stem which is movable with respect to the tube and defines an axis, the recessed head being mounted to move in rotation and in translation respectively around and along the axis of the stem, a return spring disposed around the stem, the crown/pusher includes a cage housing the spring, the cage being traversed by the stem and including an upper part integral with the recessed head and a lower part freely mounted with respect to the recessed head, the upper part cooperating with the lower part in order to drive the lower part in its rotational movement and in order to move in translation along the axis with respect to the lower part, the spring being compressed inside the cage in order to be driven in rotation with the cage.

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 shock-proof device (200) for a movement configured to allow the movement of the horological movement (210) along at least three degrees of freedom. The shock-proof device (200) includes at least one damping element (230) configured to damp the shocks of the horological movement (210) and a crown (100) configured to move between a first position (101) wherein the horological movement (210) is free along at least three degrees of freedom and a second position (102) wherein the horological movement (210) is rigidly connected to the crown (100).

A method is for manufacturing an ornamental part, for example a watch, jewellery or telephone part, in particular a watch crown. The part includes, at least partially, a hard material with a Vickers hardness exceeding 1,000 HV. The method includes the following main steps: producing a precursor from a mixture of at least one powder material with a binder, producing an insert made of a polymer material, the insert having, at least partially, a negative shape of that desired for at least one portion of the part, overmoulding the precursor onto the insert made of a polymer material by injection into a mould to form a green body, and sintering the green body to form a body of the future part from the hard material.

A control device (2) mounted in an opening (20) in a middle (16) and including a support (14) and a rotatable part, which has a shaft (12), a gripping member (4) and a control member (6) forming a rotation sensor (26). The sensor includes a magnetic detector provided inside the watch case in a radial peripheral region of the control member. On a first side of a circular opening (22), the support has a cavity (24) which is open in the axial direction. The cavity is configured to house the control member fixedly mounted on the shaft, such that this control member can be momentarily retracted, at least for the most part, into the cavity following an axial movement of the shaft into a position in which the magnetic detector is mounted inside the watch case.

A control device (1) for a timepiece (200) includes: an input (2), intended to be rotated by action of a user in a first direction or in a second direction, a first unidirectional connector (3), intended to mechanically connect the input (2) to a first mechanism (5) providing a first timepiece function, and a second unidirectional connector (4), intended to mechanically connect the input (2) to a second mechanism (6) providing a second timepiece function, the first unidirectional connector (3) arranged and/or configured to drive the first mechanism (5) exclusively when the input is manoeuvred in the first direction, the second unidirectional connector (4) arranged and/or configured to drive the second mechanism (6) exclusively when the input is manoeuvred in the second direction, the first unidirectional connector (3) having first toothings (321, 331) which interact irreversibly and/or the second unidirectional connector (4) having second toothings (421, 431) which interact irreversibly.

A non-magnetic watch component (1) comprising a substrate (4) made of a copper alloy, wherein at least one part of the substrate (4) has a surface layer (5) including Cu.sub.xTi.sub.y intermetallics, and a method for manufacturing this watch component.

The invention relates to a timepiece having a rotary control member, the rotary control member having a hollow cylindrical body coaxial with the axis of rotation of the rotary control member, the hollow cylindrical body defining a hollow inner housing having or supporting a coaxial rotary disc on which is arranged a rotatable mark or logo motif visible from the exterior of the timepiece. The rotary disc rotates freely about its axis in or on the hollow cylindrical body, the rotary disc cooperating with a displacement device comprising an asymmetrically distributed weight to create an imbalance tending to rotate said rotary disc about its axis when the timepiece is in motion or when the control member has been rotated, so that, seen from the outside, the motif maintains a substantially fixed orientation.