An approach is provided that automatically adjusts a band of a wearable electronic device. The approach detects conditions, such as activity-based conditions and location-based conditions, and automatically adjusts the band of the wearable electronic device based on the detected conditions.

The method for configuring a wristwatch strap for a given wearer includes: firstly, acquiring (E1) at least one morphological data item (1; 2) of the wearer of the bracelet; intermediately, automatically determining (E2) at least one optimal bracelet configuration (c*) adapted to the wearer, including determining the adjustment of the length of the bracelet on the basis of the at least one morphological data item (1; 2), the intermediate determining (E2) of the at least one optimal configuration of the bracelet including determining configuration data; and secondly, preparing (E3) the bracelet of the wearer according to an optimal configuration determined in the preceding step.

The invention relates to a bracelet clasp, in particular for a wristwatch, comprising a device for fine length adjustment of the bracelet. In one embodiment, the invention relates to a clasp with extensible buckle, and the adjustment device is provided on a blade intended for being inserted between two posts of a main blade when the clasp is closed. The adjustment device includes a locking pin, arranged in an orthogonal direction relative to the longitudinal direction of the clasp and housed so that at least one portion of the pin is provided above a common upper surface of the blades of the clasp. In one embodiment, the mobile piece of the adjustment device is pivotably mounted on the clasp.

A folding clasp for a wrist watch comprising a first bracket (3) and a second bracket (4), wherein the first bracket (3) has a first securing mechanism (6) for securing a wristband or a watch housing of the wrist watch, wherein the second bracket (4) has a second securing mechanism (7) for securing the wristband (2) of the wrist watch, wherein the first bracket (3) and the second bracket (4) are moveably connected to one another, such that the first and the second brackets (3, 4) can be moved relative to one another between an open state and a closed state of the folding clasp (1), wherein the folding clasp has a locking mechanism (9) in order to retain the first and the second brackets (3,4) in the closed state, wherein the second securing mechanism (7) has a protruding pin (74) which is designed to be guided through the wristband (2) in order to secure the wristband in various axial positions in the second securing mechanism (7), wherein the second securing mechanism (7) has a blocking means (8) which is designed to retain the distal end of the pin (74) guided through the wristband (2) such that the wristband is blocked on the pin (74) in the open state of the folding clasp (1).

A watch clasp with a finely adjustable watch strap length includes: a watch clasp sliding holder, located on a back surface of a watch clasp case; a sliding stop module, fixing the watch clasp sliding holder to the back surface of the watch clasp case through engagement, where the sliding holder can slide between the watch clasp case and the sliding stop module; a stop spring bar, fixed to the watch clasp case, and an unlock module, fixed to the watch clasp case where the unlock module is engaged with the sliding stop module, and the stop spring bar and the unlock module are respectively located on two sides of the sliding stop module; and an extension latch assembly, where one end of the extension latch assembly is fixed to the watch clasp case, and another end of the extension latch assembly is fixed to an elastic fine-adjusting assembly.

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.

A clasp for a bracelet or wristband includes first and second blades, the first blade being articulated to the second blade by a first end, between a closed position, in which the second blade is folded onto the first blade, and an open position, in which the second blade is released from the first blade, the first blade being articulated at a second end to a member for attaching a first wristband portion. The clasp includes an adjustment mechanism arranged to adjust the position of the second blade with respect to the first blade in an open position, the adjustment mechanism including a groove machined in the second blade, an arbor integral with the first blade and passing through the groove, the arbor receiving a pusher for releasing and/or locking it in order to move the second blade.

A bracelet clasp, of a deployant buckle type, is provided. The bracelet clasp includes first and second strips articulated to one another, between a closed position for wear and an open position, the first strip carrying a member for attaching a first bracelet strand, the second strip including, at its second end, a length adjustor for adjusting the length of the bracelet, the clasp further includes at least one locking member for holding the first and second strips in their closed position. According to an embodiment, the length adjustor includes a bar movable relative to the second strip and carrying a stud intended to be inserted into a hole in the bracelet to define a point of anchoring of the latter to the clasp, the movable bar being able to move and define at least two positions associated with a useful length of the bracelet.

A bracelet clasp (1) of the deployant buckle type, including first and second strips (2, 4) articulated to each other via a first of their respective ends, between a closed position for wear, and at least one open position, the first strip (2) carrying a member (20) for attaching a first bracelet strand, the second, lower strip (4) having a loop member (28) at its second end defining a passage for a second bracelet strand and carrying a stud (30) intended to be inserted into a suitable hole in the bracelet strand to define an anchoring point of the latter to the clasp (1), the clasp (1) further including at least one locking member (11) for holding the first and second strips (2, 4) in their closed position, characterized in that the stud (30) is movable with respect to the loop member (28) and includes an actuator (34) arranged to move it and thereby define at least two predefined positions associated with a predefined useful bracelet length.

A clasp for a watch bracelet including a cover connected on a first side to a first bracelet strand and on a second side to a second bracelet strand, a connection between the second bracelet strand and the cover of the clasp, the connection including a connecting link sliding in a longitudinal direction of the clasp between a first position and a second position. The clasp includes at least one first and one second bars mounted in the cover, and the connecting link includes a lever provided with a hook capable of moving from a first position wherein the hook is engaged with a first bar integral with the cover of the clasp, into a second position wherein the hook is released from the engagement thereof with the first bar and the link is free to slide so as to engage the second bar with a hook.