A control device (10) for a horological movement, including a first part including a sliding guide tube (11) intended to be fixed relative to the horological movement, and a second movable part (12) slidably guided by the guide tube in an axial direction, relative to the first part, between an active position wherein it is able to be integral, by means of an adjustment rod (120), with a component of the horological movement, and an inactive position wherein the adjustment rod is intended to release the component of the horological movement. The second part includes a head (140) covering a reversible elastic casing module (130) fixed to the adjustment rod and arranged so as to occupy a rest state when the second part occupies the active and inactive positions and being urged by the guide tube when the second part moves between these positions.

The present disclosure relates to a metal wheel rotation device, comprising a watch body, which is provided with a watch case face cover and a watch case bottom cover at the upper and lower ends respectively, a watch case middle frame is fixedly arranged between the watch case face cover and the watch case bottom cover, a watch movement is sleeved in the watch case middle frame, and the watch movement is engaged in the watch case middle frame; an adjustment structure is provided in the middle position of one side of the watch case middle frame corresponding to a watch movement button, the adjustment structure is fixedly connected to the watch case middle frame by screws. This design transfers the adjustment structure of the watch case to the middle position. A rotating structure is composed of a rubber ring, a threaded rod metal structure and an external handle head. The rotating structure drives the watch movement to adjust and rotate. The ferrule is combined on the threaded rod metal structure, and the ferrule mainly serves as an adsorption and anti-slip effect, so that the original adjustment structure of the watch movement can be driven to rotate simultaneously when the external handle head rotates. The adjustment structure of the present disclosure is more convenient to use and has a more symmetrical appearance.

The stem-crown of a water-resistant watch case includes a tubular stem inserted into a tubular opening of a middle part of the watch case, and a crown including a first portion connected in part to the stem and a second handling portion. The first portion includes an annular contact surface inclined at less than 90° with respect to a longitudinal central axis of the stem-crown starting from the first portion towards the outside of the second portion. In a rest position, the first portion is in contact against an annular receiving surface of the middle part of complementary shape to one end of the tubular opening towards the outside. The crown further includes a washer under a bearing part of the first portion and contacting the stem, being configured to bear in an annular slot of the middle part between the tubular opening and the annular receiving surface.

A control device (10) for a horological movement, including a first part comprising a sliding guide tube (11) intended to be fixed relative to said horological movement, and a second movable part (12) slidably guided by the guide tube in a direction called “axial direction”, relative to said first part, between an active position wherein it is able to be integral, by means of an adjustment rod (120), with a component of the horological movement, and an inactive position wherein said adjustment rod is intended to release the component of the horological movement, said second part comprising a head (140) covering a reversible elastic casing module (130) fixed to the adjustment rod and arranged so as to occupy a rest state when the second part occupies the active and inactive positions and being urged by the guide tube when the second part moves between these positions.

A timepiece including a device for opening a cover including a fixed pendant mounted inside a middle part and a movable pendant for sliding within the fixed pendant towards the center of the case, the movable pendant having a guide element for moving along an axial guide groove, then in a circumferential guide groove into which the axial guide groove opens out and which is delimited by a boundary, such that, when the movable pendant is pushed, this movable pendant can be firstly displaced axially, then pivoted by an angle defined by the place at which the guide element abuts against the boundary, the movable pendant having a helical groove which comes into contact with at least one pin arranged with a clearance between the movable pendant and the locking spring and which is axially displaced towards the locking spring when the movable pendant is pushed, then pivoted, such that the pin presses against the locking spring and releases the cover.

A timepiece according to an embodiment enables a crown to be rotated even when it is locked, using a structure that does not cause constraints of design. The timepiece includes an outer case having a movement therein, the outer case having a crown hole through a portion thereof, an engagement member connected to the outer case, and a crown. The crown includes a shaft part inserted into the crown hole and connected to the movement, an operation part holding the shaft part movably along an axial direction of the shaft part and enabling the shaft part to rotate in a circumferential direction, and an engagement part disposed between the engagement member and the operation part and restricting movement of the operation part in the axial direction when engaged with the engagement member, the engagement part rotatably holding the operation part whether or not engaged with the engagement member.

A device for controlling the functions of a watch, which includes a crown connected to a stem, an optical action system actuated in one position of the stem from among three possible positions to determine the direction of rotation of the stem, and an electronic mechanical arrangement for controlling the functions. A guide element can rotate on a support and which has a rounded end in an annular groove of the stem to be driven in rotation, and a selection part can rotate on the support above the annular groove to be driven in rotation. The selection part includes at least one contactor for contacting a first electrical terminal on a printed circuit board in a first position of the stem, with no electrical contact in a second position of the stem, and for contacting a second electrical terminal in a third position of the stem.

A rotor apparatus is provided. The rotor apparatus includes a rotor, configured to rotate around a rotational axis, an angular position identification layer configured to surround surface of the rotor, and configured to rotate with the rotor, and configured to have a width that varies based on an angular position of the rotor, and a permeability layer configured to surround the surface of the rotor, and configured to have a higher permeability than a permeability of the rotor.

A switch device including a base member provided with a stem insertion hole, an operation member which has an engaging groove provided in an outer circumferential surface thereof, and is slidably and rotatably inserted into the stem insertion hole of the base member, a stopper member having an engaging portion which is arranged in the engaging groove of the operation member and moved along with sliding of the operation member, and a release member which releases the engaging portion from the engaging groove, in which the release member includes a pressing portion which is operated from one surface side of the base member so as to release the engaging portion from the engaging groove.

A stem-crown of a water-resistant watch case includes a stem inserted into a tubular opening of a middle part of the watch case, and a crown including a first portion connected to the stem and a second handling portion. The first portion of the crown includes an annular contact surface, which is inclined at a determined angle less than 90° relative to a longitudinal central axis of the stem-crown, extending from the link between the stem and the first portion of the crown towards the outside of the second portion of the crown. In a rest position, the first portion of the crown comes into contact or bears against an annular receiving surface of the middle part, the shape thereof complements that of an end of the tubular opening to the outside.