A device is for fastening a back on a middle of a watch. The back has a shoulder forming a cover arranged to cover entirely partly with the middle and a body arranged to rest in the middle. The device includes at least one pin integral with the middle, a seal mounted between the back and the middle. The back includes, near its periphery, at least one groove, the pin being arranged to slide in the groove between a first position, called the insertion position in which the back is free, and a second position called locking position in which the back is locked and positioned angularly relative to the middle. The groove includes at least one bump to form a hard point and increase the torque when the pin passes through the bump.

The present invention discloses a hearing aid function realization method based on a wearable device system and a wearable device. The method comprises: collecting external sound signals based on a microphone on a wearable device, and inputting the collected external sound signals into pre-installed hearing aid software; processing the external sound signals based on the hearing aid software to obtain the processed sound signals, wherein the processed sound signals meet the hearing aid needs of hearing-impaired users; and transmitting the processed sound signals to a Bluetooth headset connected with a Bluetooth module based on the Bluetooth module, so that the hearing-impaired users receive and listen to the processed sound signals based on the Bluetooth headset.

The present invention discloses a hearing aid function realization method based on a wearable device system and a wearable device. The method comprises: collecting external sound signals based on a microphone on a wearable device, and inputting the collected external sound signals into pre-installed hearing aid software; processing the external sound signals based on the hearing aid software to obtain the processed sound signals, wherein the processed sound signals meet the hearing aid needs of hearing-impaired users; and transmitting the processed sound signals to a Bluetooth headset connected with a Bluetooth module based on the Bluetooth module, so that the hearing-impaired users receive and listen to the processed sound signals based on the Bluetooth headset.

A wearable device and a method for performing one or more actions using a wearable device are disclosed. The wearable device includes a bezel ring, a watch dial a flexible ring, and a plurality of springs. The bezel ring includes a plurality of holes along a circumference of the bezel ring for placement of a plurality of magnets. The watch dial includes an outer periphery with another plurality of holes at a uniform distance. The watch dial also includes an inner periphery to house inertial sensors at a predetermined position. The flexible ring placed in between an inner surface of the bezel ring and the watch dial. A plurality of springs are placed within the other plurality of holes of the outer periphery of the watch dial. The bezel ring is configured to support at least one of tilting, shifting and rotation over the watch dial.

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.

The invention relates to a bracelet lengthening device, comprising at least one adjusting assembly (1, 2) that is movable relative to a clasp cover (21), the adjusting assembly (1, 2) and the cover (21) being provided with a first and a second fastening element (23, 35′), respectively, for fastening them respectively in several positions that are able to bring about different bracelet lengths, characterized in that the adjusting assembly (1, 2) and the cover (21) are also provided with a first and a second indexing element (15, 35), respectively.

An exterior member that is favorably manufactured, a case having the exterior member and a timepiece having the case are provided. The exterior member includes an exterior main body section in which a first resin layer is provided on one side of a sheet member formed of carbon fiber and a cutout recess section from which a portion of the sheet member is exposed is provided in the first resin layer on the one side of the sheet member, and a protection member which covers the cutout recess section of the first resin layer. Accordingly, the exterior member is favorably manufactured with its strength being increased.

A method for structuring a decorative or technical pattern in the thickness of an object made of an at least partially transparent amorphous, semi-crystalline or crystalline material, wherein the object is made of an at least partially transparent material including a top surface and a bottom surface which extends away from the top surface. The top or bottom surfaces is provided with a mask defining an opening whose outline corresponds to the profile of the pattern to be structured, the mask covering the top or bottom surface at the positions which are not to be structured. The pattern is structured with a mono- or multicharged ion beam through the opening of the mask, wherein the mechanical properties of the mask are sufficient to prevent the ions of the ion beam from etching the top or bottom surface at the positions where this top or bottom surface is covered by the mask.

A switch device including a base member provided with a stem insertion hole, an operation member which has an engaging groove provided in an outer circumferential surface thereof, and is slidably and rotatably inserted into the stem insertion hole of the base member, a stopper member having an engaging portion which is arranged in the engaging groove of the operation member and moved along with sliding of the operation member, and a release member which releases the engaging portion from the engaging groove, in which the release member includes a pressing portion which is operated from one surface side of the base member so as to release the engaging portion from the engaging groove.

A case including a case member having a back cover attached thereto, and a cover member which is arranged on a side of the back cover opposite to the case member side while covering an outer circumferential surface of the case member and on which band attachment sections are provided corresponding to the outer circumferential surface of the case member.