A jewelry item comprises a ring-shaped spring; a ring-shaped chain comprising a plurality of chain links wherein each chain link is slidably attached to the support element; each chain link comprises a plate having a first surface facing the spring and a second surface opposite to the first surface; a seat and a hook opposite to each other, the hook is inserted into a seat of a subsequent chain link so as to lock the chain links to each other while allowing the chain links to reversibly slide from a contact position to a distanced position with respect to each other.

An extensible ornamental item comprising an annular element formed by a plurality of meshes and an elastic ring mounted passing through each mesh, each mesh having a female element and a male element constrained in a mutually movable manner to the male element and to the female element, respectively, of the two adjacent meshes, each male element comprising a tubular body provided with flaps comprising a slot, each female element comprising a central body, a circular hole, two circular openings and two pairs of pins. Each pin is adapted to engage in the respective slot of the male element.

The invention relates to a modular element (1) for making jewelry items, trinkets and the like, having a convex outer surface (11) and a through hole (14) arranged at the top of said outer surface (11), wherein a wire, chain or support for making said jewelry item, trinket and the like, can be inserted through said through hole (14), a main axis of symmetry (X) passing through the hole (14), comprising a concave inner surface (12) intended to at least partially accommodate the outer surface (11) of a second element (1) adjacent to the first one, characterized in that said outer surface (11) can be inscribed on a rotation surface whose generatrix is an arc of a conic section and whose axis of rotation coincides with said main axis of symmetry (X).

This invention also relates to a jewelry item (100).

A wearable decorative element comprising at least one ring-shaped elastic member, supporting a plurality of female elements, each of the female elements comprises a hollow body extended between a first and second through opening obtained between two opposite lateral walls for the passage and sliding of said elastic member, a plurality of hollow male elements arranged on the elastic member alternating with the female elements and adapted to allow the passage and sliding of the elastic member therein, each of the male elements fitting in a sliding manner at least partly inside one of either the first through opening or the second through opening of one of the adjacent female elements, each of the male elements comprises at least two toothed elements configured, to fit inside the hollow body to limit the mutual sliding between the female elements on the male elements at a predefined maximum distance between the adjacent female elements.

A bracelet 10 comprised of multiple strands has at least one bridge, for example three bridges, slidably disposed on the strands to connect the strands in spaced apart relation to prevent entwining of the strands with each other. Each bridge has a pair of bodies of toric shape connected by a rigid bar and each bridge may be shaped and/or colored to lend aesthetic value to the appearance of the bracelet.

Jewelry with non-precious metallic core and process for producing, comprising an outer layer (10) and an inner core (50), a melting temperature of the inner core (50) is higher than that of the outer layer (10), consequent to a synchronous position of an outer markers (12a, 12b, 12c) and an inner markers (52a, 52b, 52c), the outer layer (10) engulfs the inner core (50) with a prescribed thickness dimension (44) all around; mechanically moving, flexing and load bearing part of an active jewelry are made of non-precious metal, the outer layer (10) is made of a precious metal like gold, silver, platinum and the like; while the inner core (50) is made of a non-precious metal like steel, titanium and the like, the jewelry article (100) is studded with diamonds and precious stones. The jewelry article (100) may be an array of closed links (110).

A flexible jewelry cable includes a plurality of helical links. Each link has a body that extends helically about a central axis of the link. Each link includes a protrusion extending from an inner surface of the body at or near ends of the body. Each protrusion defines a through hole that is coaxially aligned with the body. The body defines a female recess on the inner surface of the body, each recess corresponding to one protrusion. The recesses are at or near the ends of the body. One recess of a first one of the links is configured to receive one protrusion of a second one of the links and align the hole of the received protrusion with the hole of one protrusion of the first link. The cable includes a string extending through the aligned holes of the protrusions of the links.

Jewelry with non-precious metallic core and process for producing, comprising an outer layer (10) and an inner core (50), a melting temperature of the inner core (50) is higher than that of the outer layer (10), consequent to a synchronous position of an outer markers (12a, 12b, 12c) and an inner markers (52a, 52b, 52c), the outer layer (10) engulfs the inner core (50) with a prescribed thickness dimension (44) all around; mechanically moving, flexing and load bearing part of an active jewelry are made of non-precious metal, the outer layer (10) is made of a precious metal like gold, silver, platinum and the like; while the inner core (50) is made of a non-precious metal like steel, titanium and the like, the jewelry article (100) is studded with diamonds and precious stones. The jewelry article (100) may be an array of closed links (110).

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.

A strap of the present disclosure includes a spring rod that includes a shaft member, and a strap main body that includes a plurality of decorative members coupled to each other and a connecting ring coupled to an end portion of the plurality of decorative members. The strap further includes a coupler that includes a spring rod insertion hole through which the spring rod is inserted, a fixing member insertion hole, and a connecting ring arrangement portion in which the connecting ring is disposed and that can be coupled to a watch main body of a watch by the spring rod, and a fixing member that connects the strap main body and the coupler by being inserted through the fixing member insertion hole and the connecting ring.