Abstract: The invention concerns a device for attaching a wristlet (1) to a watchcase including a middle part (2) fitted with a pair of attachment horns (2e) for the wristlet (1), this device allowing instantaneous attaching and detaching of a strand of the wristlet (1) to the middle part (2) without using a tool and without any particular knowledge or visual inspection, characterized in that one of the ends of the wristlet is attached to a plate (4) including two pairs of catches (1a, 1b, 1c, 1d) arranged respectively along the longitudinal edges of the plate (4), and co-operating with two pairs of grooves (2a, 2b, 2c, 2d) provided in lateral faces of the horns (2e).

Abstract: The clasp of this invention include a first element (1) bearing a hook (4) and a second element (6) under which is arranged a catch (9). The second element is provided with an opening (8) giving access to two identical holes (11, 17) arranged side by side in the longitudinal direction of the bracelet. The hook may be latched as desired by the first (11) or the second (17) hole is accordance with whether one wishes the bracelet to be tight or looser around the wrist. In closed position the beak (5) of the hook will be located under the catch. In order to open the clasp one presses the push button (10) which forms an integral part of the catch. Such clasp may be employed for a wrist watch.

Abstract: The bracelet of the invention comprises a plurality of elements articulated one after another. One of these elements supports a timepiece and the others form the links of the bracelet.The elements are fitted into one another end-to-end and held together by means of two non-extensible flexible ties passing via channels formed in each of the elements and situated on either side of the longitudinal axis of the bracelet. The bracelet further includes at each extremity thereof a terminal piece provided with means for fixing the flexible ties.The elements may be formed from a synthetic material reinforced with carbon fibres and the ties from a synthetic material impregnated with graphite.

Abstract: A bracelet comprises a plurality of interengaging pivotally-connected flat links. Each link has an elliptical contour and a central diamond-shaped opening, a first channel in the upper face and a second channel in the lower face, the channels crossing each other so that the sides of the channels coincide with the pairs of opposed edges of the opening. One end of the first channel has a slot extending from the edge to the opening for the passage of another link during assembly. This other link is turned through 90.degree. to lie in the same plane after passing through the slot and the links are pivotally connected by pivot pins which pass through apexes of the diamond-shaped opening lying on the center line of the bracelet and are received in holes extending within the thickness of the links.

Abstract: A double-safety catch for a bracelet, for example a watch bracelet, has a first closure element pivotally mounted at one end of a first portion of the bracelet for swinging about an axis transverse to the length of the bracelet. The first closure element passes through an opening in the end of the second portion of the bracelet and has a projecting catch which prevents accidental withdrawal of the first closure element from the opening and serves for locking resilient engagement with a rib on the first portion to trap the end of the second portion. A second closure element is pivotable about an axis extending longitudinally of the bracelet to cover the first closure element and to engage with a spring locking device which is manually releasable.

Abstract: The timepiece of the invention includes a hand for date display. This hand is driven via a calendar ring of a well-known type bearing teeth on its outer circumference. Such teeth drive intermediate gearing which in turn drives a calendar wheel fixed to the date display hand. This mechanism enables the mounting of a date displaying hand on a movement normally intended to show dates through a dial opening with minimum modifications.