Watch band comprising lower and upper half band portions connected at a fold portion to surround a watch lug at the fold portion, each comprising a drilled hole for the passage of a double rivet comprising lower and upper bodies, either inserted one inside the other or each inserted into a common tube, the band including, at each double rivet, a snap means for ensuring a reversible axial stop for the lower body with respect to the upper body, comprising either a holding plate aligning lower and upper grooves of the lower and upper bodies, or two lower and upper clip lips of the common tube each clip fitted onto a complementary lower or upper lip of the lower or upper body.

Watch band comprising lower and upper half band portions connected at a fold portion to surround a watch lug at the fold portion, each comprising a drilled hole for the passage of a double rivet comprising lower and upper bodies, either inserted one inside the other or each inserted into a common tube, the band including, at each double rivet, a snap means for ensuring a reversible axial stop for the lower body with respect to the upper body, comprising either a holding plate aligning lower and upper grooves of the lower and upper bodies, or two lower and upper clip lips of the common tube each clip fitted onto a complementary lower or upper lip of the lower or upper body.

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 wearable device includes a main body and a band body. The opposite sides of the main body are provided with a tail portion and a hook portion, respectively. An open groove is provided between the hook portion and other parts of the main body. One end of the band body is connected to the tail portion. The band body enters the open groove from an open side of the open groove and is folded back around the hook portion. The other end of the band body is fixed to a part of the band body, so that the band body is coupled to the hook portion, and the band body is adapted to fix the main body to a subject.

A wearable device includes a main body and a coupling member. The main body has a tail portion and a hook portion at two opposite sides respectively. One end of the coupling member is connected to the tail portion. A buckle hole of another end of the coupling member is for sleeving onto the hook portion to fix the main body to a subject.

Connecting device allowing a releasable connection between a bracelet strap and a folding clasp including at least two articulated arms and two fastening portions capable of reversibly cooperating with each other. The connecting device includes a first connecting piece capable of being secured to the free end of the bracelet strap and a second connecting piece capable of being mounted on the fastening portion. The first connecting piece and the second connecting piece are configured to reversibly cooperate with each other between a first, open position allowing separation of the first connecting piece and the second connecting piece and a second, closed position in which the first connecting piece and the second connecting piece are locked together.

A sleeve for use in an assembly for coupling a wristworn device to a first end of a strap. The sleeve has a first end dimensioned to be received in the recess in the inner face of the first lug of a wristworn device, an inner cavity dimensioned to receive therein the first end of a conventional spring bar, and a retractor coupled to the sleeve for urging the first end of the spring bar towards the second end of the spring bar. The second end of the spring bar is coupled to the second lug, the spring bar is coupled to the strap, the first end of the spring bar is positioned in the inner cavity of the sleeve and the first end of the sleeve is coupled to the first lug. A removable retractor for use with a spring bar, which allows for the use of a plurality of spring bars and therefore, lends itself to widespread use and retrofitting of an assembly that couples a strap to a wristworn device, is also provided.

A sleeve for use in an assembly for coupling a wristworn device to a first end of a strap. The sleeve has a first end dimensioned to be received in the recess in the inner face of the first lug of a wristworn device, an inner cavity dimensioned to receive therein the first end of a conventional spring bar, and a retractor coupled to the sleeve for urging the first end of the spring bar towards the second end of the spring bar. The second end of the spring bar is coupled to the second lug, the spring bar is coupled to the strap, the first end of the spring bar is positioned in the inner cavity of the sleeve and the first end of the sleeve is coupled to the first lug. A removable retractor for use with a spring bar, which allows for the use of a plurality of spring bars and therefore, lends itself to widespread use and retrofitting of an assembly that couples a strap to a wristworn device, is also provided.

Watch band comprising lower and upper half band portions connected at a fold portion to surround a watch lug at the fold portion, each comprising a drilled hole for the passage of a double rivet comprising lower and upper bodies, either inserted one inside the other or each inserted into a common tube, the band including, at each double rivet, a snap means for ensuring a reversible axial stop for the lower body with respect to the upper body, comprising either a holding plate aligning lower and upper grooves of the lower and upper bodies, or two lower and upper clip lips of the common tube each clip fitted onto a complementary lower or upper lip of the lower or upper body.

An attachment device is provided for two elements of a watch band to allow the two elements to be hooked into place or unhooked. The first element includes at least one bar on one of its ends. The second element includes two grooves, each including a longitudinal opening respectively opposite one another, and one of the two elements can move from an unhooked position. One of the elements is oriented in a predetermined angular position in relation to the other element, to a hooked position, in which the two elements are coplanar after a rotation of a predetermined angle of one of the two elements in relation to the other so that each groove is articulated on the bar to hold the two elements hooked to one another.