Modular smartband can include a plurality of coupled modules. The plurality of modules can include at least one core module having at least one processor and at least one peripheral module. Each of the plurality of modules has a coupler end and a receiving end disposed on opposing ends of the module, the coupler end configured to be received in the receiving end of an adjacent module. At least one of the plurality of modules can include a display and at least one the plurality of modules includes a battery.

A bracelet having articulated links, including an articulation between a first link and a second link including a tongue that pivots in an opening between side flanges of this first link together forming a double clevis fitting, wherein, in the articulation, the first link or respectively the second link includes at least one external trunnion or respectively at least one internal trunnion arranged to pivot in an internal half-bearing of the second link, or respectively in an external half-bearing of the first link, the second link or respectively the first link includes at least an upper part and a lower part arranged to enclose and conceal therebetween each external trunnion or respectively each internal trunnion.

A jewelry chain having a plurality of links including a plurality of connecting links and one or a plurality of decorative links. Each decorative link comprises an outline of an alphanumeric character and becomes part of the chain by connection from at least two connecting links. The connecting links can easily pass through open sections of the alphanumeric character outline to allow rotation and sliding movement in at least two different directions so that the alphanumeric character can provide different appearances when the jewelry chain is worn. The chain can form or be incorporated in necklaces, bracelets or earrings.

A jewelry chain having a plurality of links including a plurality of connecting links and one or a plurality of decorative links. Each decorative link comprises an outline of an alphanumeric character and becomes part of the chain by connection from at least two connecting links. The connecting links can easily pass through open sections of the alphanumeric character outline to allow rotation and sliding movement in at least two different directions so that the alphanumeric character can provide different appearances when the jewelry chain is worn. The chain can form or be incorporated in necklaces, bracelets or earrings.

A quick release system for an interchangeable watch strap on a clasp, the quick release system including an end link for securing the watch strap on the clasp, the end link including a body and two lateral end piece placed on each side of the body, a first lateral end piece being in one piece with the body and a mobile end piece, able to slide away from the body, a first bar including a first end being fixed to the first lateral end piece and a second free end cooperating with a bore of the mobile end piece; a second bar extending from the first end piece, including a first end able to slide inside the first end piece, and a second end articulated to the mobile end piece; a retaining stem arranged coaxial and fixed to the second bar.

A connection structure includes: a connection pin that includes a first part and a second part between which a step is formed and that connects a first target and a second target by being inserted in an insertion hole; and a pin locker movable in a moving direction in a recess formed in either the first or second target. The pin locker has a pin engaging part that engages with the step of the connection pin and a pin insertion part. One of the recess and the pin locker has a first abutting part, and another has a first abutted part. When the pin locker is at a specific position and the first abutting part abuts the first abutted part, at least either an orientation or a position of the pin insertion part is limited such that the second part is allowed to pass through the pin insertion part.

A band comprised of a plurality of link members connected to each other to be able to pivot by pivot shafts, in the band, at least one of the plurality of link members has a sheet member and a wrapped member around which the sheet member is wrapped, the wrapped member has a side part facing an adjoining link member, and

at least one end part of the sheet member is arranged between a top end part and bottom end part of the side part in the thickness direction.

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.

A band of the present disclosure includes: a spring bar including a shaft member and an operation portion; an outer piece including a first arm portion and a second arm portion; and a middle piece disposed between the first arm portion and the second arm portion. The first arm portion includes a first recessed portion provided along an axial direction of the shaft member, the second arm portion includes a first insertion hole provided along the axial direction, and the middle piece includes a second insertion hole provided along the axial direction, and a second recessed portion provided along the axial direction and in communication with the second insertion hole. The spring bar is inserted through the first recessed portion, the second insertion hole, the second recessed portion, and the first insertion hole. The operation portion is disposed protruding from an opening of the second recessed portion.

Provided is an electronic device comprising: a first unmodified section, which is one part of an electronic device having a modifiable shape and has a fixed and retained shape; a modification section extending from the first unmodified section and capable of being bent in one direction; a second unmodified section extending from the modification section and formed to be smaller than the first unmodified section; a flexible display arranged on one surface across the first unmodified section, the modification sensation and the second unmodified section; an elastic plate arranged on the other surface across the first unmodified section, the modification section and the second unmodified section; and a shape fixing unit provided in the first unmodified section or the second unmodified section so as to retain the modified shape of the electronic device. Additionally, other embodiments are possible.