A safety valve for a watch including a head that is movably mounted on a tube and able to move between an open position and a closed position, the tube including in its internal volume a first spring and wherein the tube is provided on an external face with a cam surface allowing a manual movement and an automatic movement of the head into its open position, after the first spring, the tube includes a second spring having a higher stiffness than that of the first spring.

A crown head for a timepiece includes a cap, a tube secured in a timepiece case, a central pipe engaged with the tube, and a safety valve with a discharge channel in fluid communication with the inside of the case when the valve is in an open configuration, to discharge excess fluid. The safety valve also includes a piston fitted inside the central pipe and an elastic member to cooperate with the piston, which can be displaced axially according to the pressure variations inside the case. The crown head also includes a blockage which prevents separation of the cap and the tube. The blockage includes a shoulder arranged on the inner wall of the tube, and includes a support surface against which part of the piston can abut, and a rim provided at the base of the central pipe to abut against a shoulder on the piston.

A safety valve for a timepiece, particularly for a diving watch, including a discharge channel arranged to be able to be in fluid communication with the inside of a case of the timepiece when the valve is in an open configuration, in order to discharge excess fluid, particularly a gaseous fluid, the valve having a tube and a valve head provided with a cover and an axial skirt placed in various axial positions relative to the tube, and a pressure control module arranged inside a fluid duct provided in the tube and sliding axial guiding elements participating in controlling the movement of the valve head relative to the tube in the various axial positions, the safety valve including blocking elements preventing disconnection between the valve head and the tube and included in an outer or inner wall of the tube and in the valve head.

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 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 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 invention relates to an escape valve for a timepiece including an outlet channel arranged to be capable of being in fluid communication with the interior of a case of the timepiece when the valve is in an open configuration to evacuate an excess of fluid. The valve includes a tube to be fixed in the case of the timepiece and a valve head provided with a cover and an axial skirt adapted to be placed in different axial positions, a pressure control module separate from the valve head arranged in the interior of a fluid conduit provided in the tube and axial guide elements by screwing defined in the valve head and the tube playing a part in the control of the displacement of the valve head relative to tube in the different axial positions, blocking elements preventing a disassociation between the valve head and the tube.

The invention relates to a safety valve for a timepiece, particularly for a diving watch, comprising a discharge channel arranged to be able to be in fluid communication with the inside of a case of said timepiece when said valve is in an open configuration, in order to discharge excess fluid, particularly a gaseous fluid, said valve comprising: a tube intended to be fastened in the case of the timepiece, as well as a valve head provided with a cover and an axial skirt that is capable of being placed in various axial positions relative to said tube; a pressure control module separate from the valve head arranged inside a fluid duct provided in the tube, as well as sliding axial guiding elements defined in the valve head and the tube participating in controlling the movement of the valve head relative to the tube in the various axial positions,
said safety valve comprising blocking elements preventing disconnection between the valve head and said tube, said blocking elements being included in an outer or inner wall of the tube and in the valve head.

The invention relates to a screw-down orientable crown comprising a cover integral with a tube and receiving a distinctive sign, a fixed body pressed into a watch case middle and intended to receive the tube, and means for adjusting the angular orientation of the cover with respect to the case middle. According to the invention, the means for adjusting the angular orientation of the cover comprise a ring arranged to be screwed onto the tube, said ring comprising first indexing means arranged to cooperate with second indexing means formed in the body, the ring being pressed in and positioned on the body via the first and second indexing means.

A device includes a case having a case sidewall defining a circular receiver having a receiving opening and a central axis. A device body, which is waterproof in one or more applications, includes a sidewall defining a receiving aperture. A crown stem includes a push button disposed within a duct of a threaded bushing and one or more O-rings disposed about the actuation stem to allow translation of the actuation stem in the duct while preventing liquids from passing through the duct. The crown stem inserts through the aperture in the case so that the threaded bushing can hermetically seal the receiving aperture when the device body is inserted into the circular receiver to prevent the liquids from entering the receiving aperture.