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.

Method of assembling a timepiece comprising a watch movement and a water-resistant case, the method comprising a first stage of closing the case by fitting and securing a first case element, more particularly a back, and then a second stage of closing the case by actuation of a second case element, more particularly a stem, in particular a winding stem or a valve stem or a push-button stem, the second case element being mobile between a first configuration, in which a fluid communication between the interior of the case and an environment outside the case is permitted, and a second configuration, in which the fluid communication between the interior of the case and the environment outside the case is limited, the second stage of closing being an actuation of the passage of the second element from the first configuration to the second configuration.

A button (1) for a timepiece, comprising:—a rod (4);—a tube (2) for guiding of the rod (4) along a longitudinal axis (A);—a ring (3); and—a mechanical connection (3d, 2c, 5) between the ring and the tube, the mechanical connection being of the bayonet type and/or comprising a spring (5).

An electronic device is provided. The electronic device includes a body having a passage, a physical button having a rod passing through the passage, an inner surface having a first convex surface and a second convex surface formed to be spaced apart from the first convex surface, a through-hole formed by the inner surface, an outer surface having a third convex surface and a protruding surface formed to be spaced apart from the third convex surface, a bottom surface formed between the inner surface and the outer surface, and a waterproof member having a fourth convex surface formed in the direction facing the bottom surface, wherein the waterproof member is arranged between the body and the rod.

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.

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.

An electronic watch may include a housing defining a side wall having a through-hole and a crown assembly including an actuation member. The actuation member may include a crown shaft extending through the through-hole and having an exterior portion defining an input surface and a crown ring coupled to the exterior portion of the crown shaft and electrically isolated from the crown shaft. The crown assembly may further include an optical encoder component attached to the actuation member and defining a group of optical features. The electronic watch may further include an optical detector configured to detect rotation of the crown assembly by detecting motion of the group of optical features and an electrocardiograph sensor comprising a sensing component. The sensing component may be conductively coupled to the actuation member via a conductive path at least partially defined by the crown shaft.

An electronic watch may include a housing defining a side wall having a through-hole and a crown assembly including an actuation member. The actuation member may include a crown shaft extending through the through-hole and having an exterior portion defining an input surface and a crown ring coupled to the exterior portion of the crown shaft and electrically isolated from the crown shaft. The crown assembly may further include an optical encoder component attached to the actuation member and defining a group of optical features. The electronic watch may further include an optical detector configured to detect rotation of the crown assembly by detecting motion of the group of optical features and an electrocardiograph sensor comprising a sensing component. The sensing component may be conductively coupled to the actuation member via a conductive path at least partially defined by the crown shaft.

A watch including: a case including a through hole formed in a side surface of the case; a cylindrical member which is an integral body formed of a first cylindrical portion being threadedly engageable with the through hole and a second cylindrical portion in contact with the side surface of the case and having a recessed housing portion which opens to the outside of the case, and has an insertion hole continuously formed with the recessed housing portion; an operating member which has a shaft portion being inserted into the insertion hole of the cylindrical member in a slidable manner, and a head portion being formed on an end portion of the shaft portion and housed in the recessed housing portion; and a sealing member which is disposed between the case and the second cylindrical portion.

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.