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.

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.

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 wearable decorative element comprises a ring-shaped elastic member (EM), supporting a plurality of female elements (FEs), wherein each FEs comprises a hollow body extended between a first and second through opening (TO) obtained between two lateral walls opposite each other for passage and sliding of the EM, a plurality of male elements (MEs) adapted to allow passage and sliding of the EM therein, each of the MEs inserting in a sliding manner partly inside one of the first TO and the second TO of one of the adjacent FEs to vary the mutual distance between the FEs along a direction of sliding, and a block element associated with one of either the FE or the male element transversely with respect to the direction of sliding to limit the mutual sliding between the FEs on the MEs and to cover the EM when distance between the adjacent FEs is maximum.

A wearable decorative element comprises a ring-shaped elastic member (EM), supporting a plurality of female elements (FEs), wherein each FEs comprises a hollow body extended between a first and second through opening (TO) obtained between two lateral walls opposite each other for passage and sliding of the EM, a plurality of male elements (MEs) adapted to allow passage and sliding of the EM therein, each of the MEs inserting in a sliding manner partly inside one of the first TO and the second TO of one of the adjacent FEs to vary the mutual distance between the FEs along a direction of sliding, and a block element associated with one of either the FE or the male element transversely with respect to the direction of sliding to limit the mutual sliding between the FEs on the MEs and to cover the EM when distance between the adjacent FEs is maximum.

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.

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 extensible jewelry item includes an annular element formed by a plurality of links and an internal titanium or stainless steel spring is mounted to extend each link. Each link has on each side an external female element and an internal male element. The female elements are micro-slots in the extended sections of each links. The male elements are internal micro-posts that extend through the female's slots to restrict the movement of the female elements of the link adjacent thereto away from each other. The micro-size of posts and slots enables the mechanism to be applied to links as small as 2.0 mm×2.0 mm×2.0 mm; therefore, also ideal for fine jewelry rings. In the elliptical version of the extensible jewelry item, the adjacent surfaces of each link are designed with individual specific taper angles; thus, when assembled, the links form an elliptical shape. In the elliptical shape, each link is numbered, and is placed in specific position. In the round version of the extensible jewelry item, the taper angles of the adjacent surfaces are all the same; therefore, the links are not numbered and is not relevant where they'll be placed.

An extensible jewelry item includes an annular element formed by a plurality of links and an internal titanium or stainless steel spring is mounted to extend each link. Each link has on each side an external female element and an internal male element. The female elements are micro-slots in the extended sections of each links. The male elements are internal micro-posts that extend through the female's slots to restrict the movement of the female elements of the link adjacent thereto away from each other. The micro-size of posts and slots enables the mechanism to be applied to links as small as 2.0 mm×2.0 mm×2.0 mm; therefore, also ideal for fine jewelry rings. In the elliptical version of the extensible jewelry item, the adjacent surfaces of each link are designed with individual specific taper angles; thus, when assembled, the links form an elliptical shape. In the elliptical shape, each link is numbered, and is placed in specific position. In the round version of the extensible jewelry item, the taper angles of the adjacent surfaces are all the same; therefore, the links are not numbered and is not relevant where they'll be placed.

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.