Watch or item of jewellery comprising a case or setting comprising main and secondary slots that enable the fixture of interchangeable removable wristbands comprising an end link with an end piece with studs arranged to cooperate in a complementary manner with these secondary slots, wherein this link comprises a lock with a slide catch arranged to cooperate in a complementary manner and with minimal play with the main slot in a locking position, towards which the slide catch is moved by elastic restoring means, wherein said lock comprises intrinsic unlocking means with a pushbutton operable by a user to move this slide catch away from the main slot and control an unlocking of the lock by retraction of the slide catch by an application of pressure to the pushbutton.

Disclosed herein is an encasement for a watch.

The present disclosure discloses a watch with a case convenient to replace. The watch includes a case, a movement and an inner container, wherein the movement is disposed on the inner container. The watch further includes an engagement structure for assembling the case and the inner container; when the case is dismounted, the engagement structure is pressed to be elastically compressed towards one side of the inner container so as to be disengaged from the case; and when the case is mounted, an outer side of the inner container is sleeved by the case, and the case is pressed along a side wall of the engagement structure, so that the engagement structure is engaged with the case. The watch is convenient to operate, so that a user can select the proper case and inner container to be matched and combined, and waste caused by purchasing various different watches is avoided.

The present invention relates to a watch protective case with a knob, including a soli rubber case body covering the outside of a watch in a cooperative manner and a hard rubber cover connected to the soft rubber case body in a cooperative manner on an upper end of the watch. A first soft rubber watchband and a second soft rubber watchband are respectively provided at two ends of the soft rubber case body, an adjustment hole is opened in a position on the soft rubber case body that corresponds to a watch button, and a knob adjustment component connected to the watch button in a cooperative and adhesive manner is provided within the adjustment hole. In addition, the adjustment hole is blocked by the knob adjustment component, which can effectively provide dust-proof and aesthetic effects.

The current invention proposes an improved combination of bracelet and wrist watch comprising a band with watch body where each part defines seconds, minutes and hours. The body is unique and pleasing thus making it suitable for everyone's usage.

A method for frequency tuning a set of plates of a watch. The plates are disposed one above the other forming a watch dial with a space defined between the plates. A mechanical shock to the set of plates is generated, and the vibration frequency of each plate is checked. The vibration frequency of at least one of the plates is matched if different from the other plate so as to obtain an identical vibration frequency for each plate in order to tune the plates at least according to the first vibration eigenmode so as to avoid any contact between the plates as a result of any mechanical shock.

A case middle/horn connection device for a watch, a method for attaching an attachment piece including at least one horn to a case middle and a case middle/horn assembly. The connection device includes an attachment piece including at least one horn having a first connector and a case middle having a second connector, the first connector being configured to cooperate with the second connector to attach the attachment piece to the case middle. The first connector includes a tongue with a recess. The second connector includes a groove with an undercut portion. The undercut portion is configured to lodge inside the recess of the tongue; and the case middle and the attachment are made integral when the undercut portion of the second connector is lodged in the recess of the tongue of the first connector.

A watch includes a case, and a solar cell disposed inside the case and including a substrate made of resin and having a surface, a power generating unit having, at the surface, a first electrode, a first semiconductor layer, and a second electrode that are stacked in order, a first antenna including a third electrode that is provided at the surface and that is disposed at a position not to overlap the power generating unit in a plan view viewed in a direction orthogonal to the surface, and a protective layer disposed covering the power generating unit and the first antenna.

Disclosed is a timepiece including a case, a movement and a vibration-generating device intended to produce a sound, the latter two accommodated in the case, a device for amplifying the vibrations from the vibration-generating device, and a membrane receiving the amplified vibrations and generating a sound to outside the timepiece. The vibration-amplifying device includes a lever pivotally mounted on a support in a pivoting plane non-parallel to the plane of the membrane and actuated by a transmission member cooperating with the vibration-generating device to transmit the vibrations to the lever, the lever being integral with the membrane at least translationally in the pivoting plane so a movement of the transmission member, generated by vibration of the transmission member linked to the vibration-generating device and transmitted to the membrane by way of the lever actuated by the transmission member, generates an amplified movement of the membrane for an amplified sound.

Disclosed is a mechanical wristwatch including a case having a middle, a back cover and a bezel, a vibration-generating device for generating vibrations which are intended to produce at least one sound, which is accommodated in the case, a vibration-amplifying for amplifying the vibrations generated by the vibration-generating device, and a membrane arranged to receive the amplified vibrations and generate a sound from the inside to the outside of the wristwatch. The vibration-generating device is a rotary element having a reading surface including at least one groove arranged to generate sounds. The wristwatch also includes a unit for rotationally driving the rotary element, an actuator for such unit, and a transmission member arranged to cooperate with the rotary element to transmit, to the vibration-amplifying device, the vibrations generated by the groove during rotational movement of the rotary element.