The invention provides a watch that facilitates replacement of a watch core and a bezel, comprising a watch case provided with a connecting bezel on a front side thereof, wherein a first connecting block is disposed at the top of the watch case, a second connecting block is disposed at the bottom of the watch case, and a back watch cover is rotatably connected to a back side of the watch case. This design mode enables users to disassemble the watch core by themselves without using any tools, which is convenient for replacement.

An external assembly element of a timepiece made from a first material, including a groove in which a communication circuit is arranged, wherein the communication circuit is over-molded with a polymer material filling the groove.

A decorative item made from a moulded material having a density of between 2 and 7 g/cm.sup.3, wherein the moulded material includes by weight: 60 to 90% of a metallic or ceramic material having a density higher than or equal to 5 g/cm.sup.3, 10 to 32% of a plastic material including a thermoplastic resin and a coupling agent, 0 to 8% of a reinforcement, 0 to 3% of a pigment. Also, a method of manufacturing this decorative item by injection moulding.

A rotating-bezel system intended to be mounted for rotation on a watch-case middle inside which a horological movement is housed, including a ceramic rotating bezel, an annular ring intended to cooperate with an element angularly secured to the middle, and an annular joint for connection between the rotating bezel and the annular ring, the annular ring being placed in the rotating bezel. According to the invention, the system further includes at least one element for locking the annular ring on the rotating bezel, and at least one element being configured to lock any relative rotation between the annular ring and the bezel and to thus angularly secure the assembly formed by the ring and the bezel.

A timepiece component for a timepiece case or for a timepiece includes a first ring, at least one decorative and/or display element, a second ring, and an elastic element mounted so as to bear on the first ring and to urge the at least one decorative and/or display element toward the second ring.

A personal ornament has excellent corrosion resistance, in which predetermined chemical components are included, the remainder includes Fe and impurities, a structure contains austenite at 95% or more in area %, when a diameter of a circle having a smallest area capable of including one intermetallic compound inside is defined as a size of the intermetallic compound, the number of intermetallic compounds in which the size of the intermetallic compound is 150 μm or more is 0, and the number of intermetallic compounds in which the size is 13 μm or more and less than 150 μm is 3 or less, an average equivalent circle diameter of the austenite is 150 μm or less, and a PRE defined by the following formula (1) is 40 or more.

PRE=[Cr]+3.3[Mo]+16[N]  (1)

The invention relates to a spring ring 14 for snap fitting a rotating bezel, the spring ring extending in a plane and being intended to be received in an annular groove arranged on a cylindrical outer rim of a watch case middle part made of ceramic. According to the invention, the spring ring comprises on the inner rim thereof at least one lug inclined in relation to the plane of the spring ring, said lug being intended to engage with a cylindrical outer surface of the watch case middle part, so as to index the position of the spring ring in relation to the middle part.

Bezel (10) for the case (100) of a timepiece (200), having an axis (1), a first component (1) including a first surface (1a), and a second component (2) including a second surface (2a), the first and second surfaces being positioned at least substantially facing and/or at least substantially perpendicular to the axis (A1), the first and second surfaces being intended to interact by blocking with the axial retaining element (4) positioned on a middle (6).

This disclosure describes techniques that enable a wearable device or a smart watch to provide communicate a state of an application other than a user selection event through haptic feedback. More specifically, a control-ring subsystem is configured to detect a user interaction with a control-ring of a wearable device, determine a user selection event based on the user interaction, and in doing so, generate haptic feedback to communication the state of the application.

A sub-assembly of external parts including, coaxially with a first component and a second component compressing together a sealing and friction joint, and interposed therebetween, a bolt securing them together by axially blocking the first component, and a lower surface of which lies, in the assembled position, in the vicinity of an upper surface of the second component, which bolt includes a lower relief protruding axially from this lower surface towards the second component, arranged to either complementarily cooperate with an oblong groove which is partially of revolution that the upper surface includes, and interrupted by a stopper limiting the angular travel between the second component and the bolt within a turn, or else to constitute an angular stopper to an upper relief protruding from the upper surface of the second component and extending axially towards the bolt.