A winding device on a structure of a movement or watch case, including a telescopic push-piece, independent of the control stem, driving a rack for winding a barrel, and including, between a pipe fixed to the case and an operating head, first elastic return device tending to move the head away from the pipe, this head being capable of occupying an angular, longitudinal locking position corresponding to a rest position, or an angular position of freedom allowing axial mobility, or a stop position wherein it has one degree of freedom, this rack, which is movable against second elastic return device, cooperates with a winding wheel set meshing with an intermediate rack actuated by a return spring of the second elastic return device.

A watch interaction simulation apparatus for carrying out interaction with a watch interaction member for a watch includes a sensor device adapted to be coupled with the watch interaction member. The sensor device is operable to sense an interaction with the watch interaction member. The apparatus includes an actuator device being coupled to the watch interaction member, an actuator control device for controlling the actuator device, and a sensor information computing device being operatively coupled to the sensor device.

Disclosed is watch interaction simulation system, a watch interaction simulation apparatus, watch interaction simulation methods and a computer software product including executable software code for carrying our watch interaction simulation methods.

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 watch can include one or more input components, such as a crown for receiving input from a user. The crown can be an assembly of multiple parts, for example, to provide aesthetic, structural, and/or functional attributes. The parts of the crown can be assembled in a manner that resists separation during use and when subject to environmental influences. For example, the assembled parts of a crown can be resistant to separation while a user wearing the watch is swimming, bathing, or sweating. The assembly can be secured by both mechanical mechanisms and chemical mechanisms.

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.

A method for manufacturing a decorative article (2) including the following steps of: making a blank by injection moulding a material comprising a metallic material, machining and/or polishing the blank to form a product, and forming the product to print a raised or recessed relief pattern (3) on part of the surface of the product, the product with the pattern (3) forming the decorative article. Also, a decorative article, notably an external timepiece part made of a sintered material having on part of its surface a raised or recessed relief pattern (3) made by a forming process. Preferably, the sintered material is a grade 5 titanium alloy (Ti6V4Al) or a stainless steel.

An electronic timepiece includes: a main unit having a reporting unit that reports information to a user; a crown that can be pulled out from and pushed back into a main unit by the user; a sensor that detects a state of the electronic timepiece; and a processor, wherein the processor detects a state of the crown and the state detected by the sensor and switches between a plurality of modes in accordance with the state of the crown, and wherein upon detecting that the crown has been pulled out or pushed back in, the processor causes the electronic timepiece to operate in a state reporting mode in which the reporting unit reports the state detected by the sensor to the user.

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.

Embodiments of the present disclosure disclose a rotary key force unloading mechanism, and an electronic device. The rotary key force unloading mechanism includes a key, a bourdon tube, and a cover cap; the cover cap is axially movable relative to the bourdon tube, and the cover cap and the bourdon tube are connected by an axially retractable elastic member; a stem portion of the key passes through the bourdon tube and the cover cap, so that the elastic member is compressed when the cover cap is pressed by a key cap of the key; and the stem portion of the key is provided with a limiting member for preventing separation, and when no axial force is applied on the key, no interaction forces exist between the limiting member and the bourdon tube.