The invention relates to a clasp for bracelets with a length adjustment device, wherein the adjustment device is devoid of a locking mechanism for blocking the length adjustment and/or of an activation member for unblocking a locking mechanism in order to allow the length adjustment in at least one direction of the length of the bracelet. The clasp enables a user to finely adjust the useful length of the bracelet by thrust or traction on the bracelet strand.

A bracelet clasp including a first rigid strip of which a first end is hinged on a first end of a second folding strip configured to receive a first strand of the bracelet at the second end thereof, and of which the second end of the first strip is hinged on a first end of a third folding strip from which first and second arms extend, and a cap hinged at one of the strips. The clasp is provided with first and second push-pieces. The clasp includes a banking which is housed between the first and second arms of the third strip in the closed position of the clasp, so as to ensure a symmetrical opening of the arms when simultaneous pressures are exerted on the push-pieces.

A bracelet clasp including a first rigid strip of which a first end is hinged on a first end of a second folding strip configured to receive a first strand of the bracelet at the second end thereof, and of which the second end of the first strip is hinged on a first end of a third folding strip from which first and second arms extend, and a cap hinged at one of the strips. The clasp is provided with first and second push-pieces. The clasp includes a banking which is housed between the first and second arms of the third strip in the closed position of the clasp, so as to ensure a symmetrical opening of the arms when simultaneous pressures are exerted on the push-pieces.

This application discloses a watchband clasp, a watchband, and a wearable device. The watchband clasp (1000) includes a first fastener (1), a second fastener (2) rotatably mounted on the first fastener (1), a cover plate (3) rotatably mounted at an end that is of the second fastener (2) and that is away from the first fastener (1), a hook member (4) slidably mounted on the cover plate (3), and an elastic member (5) mounted between the cover plate (3) and the hook member (4). The elastic member (5) can enable the hook member (4) to maintain a clamped state with an inner wall of a hook hole (11). The cover plate (3) is provided with a first accommodation slot (35) used to accommodate the first fastener (1) and the second fastener (2).

This application discloses a watchband clasp, a watchband, and a wearable device. The watchband clasp (1000) includes a first fastener (1), a second fastener (2) rotatably mounted on the first fastener (1), a cover plate (3) rotatably mounted at an end that is of the second fastener (2) and that is away from the first fastener (1), a hook member (4) slidably mounted on the cover plate (3), and an elastic member (5) mounted between the cover plate (3) and the hook member (4). The elastic member (5) can enable the hook member (4) to maintain a clamped state with an inner wall of a hook hole (11). The cover plate (3) is provided with a first accommodation slot (35) used to accommodate the first fastener (1) and the second fastener (2).

A wrist band for attaching a portable electronic device to a user includes articulating segments which may be releasably connected so as to provide the user the capability of sizing the wristband by adding or removing links as desired. A clasp is also disclosed for securing the wristband to a user. A manufacturing device and method are disclosed for machining complex surfaces on the segments and clasp.

A wrist band for attaching a portable electronic device to a user includes articulating segments which may be releasably connected so as to provide the user the capability of sizing the wristband by adding or removing links as desired. A clasp is also disclosed for securing the wristband to a user. A manufacturing device and method are disclosed for machining complex surfaces on the segments and clasp.

A timepiece component, having a first part and a removable cap, which is able to adopt a fastening configuration in which the removable cap is fastened to the first part, and a free configuration in which the cap is separated from the first part. The first part comprises at least two latching members intended to cooperate with at least two corresponding assembly members of the cap in the fastening configuration. The cap or the first part is elastically deformable from a rest position to a deformed position which allows for positioning and removing for passing from the fastening configuration to the free configuration of the timepiece component and vice versa. The rest position allows stably maintain the fastening configuration of the timepiece component in which the at least two assembly members of the cap are in engagement with the at least two latching members of the first part.

The method for determining at least one morphological data item of a wriststrap wearer in order to prepare (E3) a wristwatch strap taking into account this item includes: acquiring (E1) at least one morphological data item (1; 2) of the wriststrap wearer from an acquisition device of a determination system (11) provided with at least one sensor, such as a camera, a laser or a lens, configured to scan, photograph, or film at least a portion of the wrist and/or hand of the wearer, wherein the determination system (11) is designed to receive and optionally emit waves to acquire at least one morphological characteristic of the wearer of the bracelet in a first operation (O11), the at least one morphological data item being a dimension (1) from among a circumference and/or height and/or width of a wrist portion (p1) and/or of a portion of the hand (p2) of the wearer.

A wristlet clasp (100), of the folding buckle type, including first and second blades (1, 2) hinged relative to each other, the first blade (1) further including locking means for holding the first and second blades (1, 2) in their closed position at its second end, and the second blade (2) carrying a member for fastening a first wristlet strand at its second end. The first and second blades are hinged together by movable blades (3, 4) by a first of their respective ends, the hinged blades being connected to the first and second blades via a first hinge (A1) and a second hinge (A2), the hinge (A1, A2) being angularly delimited by stops respectively formed on the first end of the first and second blades and on the second end of the movable blades so as to define two predefined wearing positions depending on the size of the wrist.