Abstract: A system for fastening and/or extracting a dial disposed on a support. The dial includes a holding portion configured to bring the dial against the support and an extracting portion configured to move the dial away from the support. The system includes a movable organ configured to displace or be displaced between a fastening position and an extraction position. The movable organ includes a holding surface configured to cooperate with the holding portion so as to bring the dial against the support and an extraction surface configured to cooperate with the extraction portion so as to move the dial away from the support.

Abstract: A device for attaching a bracelet or strap to a watch case includes a bar secured to the watch case by at least one horn and an insert integral with the end of the bracelet. The bar and the insert are complementary to cooperate by interlocking or fitting with each other to form a removable assembly to make the bracelet interchangeable. The bar is formed by a cylindrical shaft having a flat portion, the flat portion being arranged to cooperate by interlocking or fitting with at least one housing made in the insert, the housing having a substantially rectangular opening for receiving the flat portion. The shaft is telescopic to move from a first position, in which the insert is positionable on the shaft, to a second position, in which the insert is locked on the shaft.

Abstract: A system for fastening and/or extracting a dial disposed on a support. The dial includes a holding portion configured to bring the dial against the support and an extracting portion configured to move the dial away from the support. The system includes a movable organ configured to displace or be displaced between a fastening position and an extraction position. The movable organ includes a holding surface configured to cooperate with the holding portion so as to bring the dial against the support and an extraction surface configured to cooperate with the extraction portion so as to move the dial away from the support.

Abstract: The invention concerns a device for attaching a bracelet or strap to a watch case, the device comprising, on the one hand, a bar secured to the watch case by means of at least one horn, and on the other hand, an insert integral with the end of the bracelet, wherein the bar and the insert are complementary to cooperate by interlocking or fitting with each other to form removable assembly means able to make the bracelet interchangeable. According to the invention, the bar is formed by a cylindrical shaft having a flat portion, the flat portion being arranged to cooperate by interlocking or fitting with at least one housing made in the insert, the housing having a substantially rectangular opening for receiving the flat portion, the shaft being telescopic to move from a first position A, in which the insert is positionable on the shaft, to a second position B, in which the insert is locked on the shaft.