Abstract: Assembly for securing the outer end of the balance-spring (1) of a sprung balance device for a timepiece that includes a balance-spring stud holder (2) for housing a balance-spring stud (10), against which the balance-spring (1) can be locked, a screw (11) for locking the stud, for securing the balance-spring (1) by insertion between the stud (10) and a back face (7), the locking screw (11) including a tip (15) in the extension of the threaded body (12) at the opposite end to the screw head, and the stud (10) including a housing (16) in which the tip (15) can be inserted. The corresponding watch and method of securing the outer end of the balance-spring are also provided.

Abstract: The bracelet is formed of a plurality of links (4, 5) assembled in an articulated manner by means of pins (8). Each pins passes through the interlocking parts of links in which a cylindrical passage is arranged where a pin can slide relatively freely. In order to ensure the position of the pin once the links have been assembled, a locking element (12) is arranged in a cavity (18) made in one of the links so as to partially intersect the passage in which the pin is arranged. This pin includes a groove (22) which an external part (35) of the locking element penetrates when the element is in the closed position. Pressing on the locking element then rotating it through an angle of 90° releases the external part of the pin groove such that the pin is then released. The pin locking device thus allows the links to be assembled in a reversible manner and the length of the bracelet to be varied by adding or removing at least one link.

Abstract: Instrument for measuring intervals of time including a chronograph mechanism (4) which it is possible at least to start, stop and reset to zero, said instrument (1) being characterized in that it further includes a ringing mechanism (6) which emits an acoustic signal at least when the chronograph mechanism (4) is started.

Abstract: A timepiece including a clockwork movement for measuring the time, and a striking work actuated by a barrel with a motor spring independent of the clockwork movement, this timepiece also including mechanical control means capable of being actuated manually to trigger the striking work, wherein the barrel is wound by means of a winding bar that ends, at its free end, in a toothed sector or rack and is kinematically connected to a winding push-button on the one hand, and to the motor spring of said striking work on the other hand.

Abstract: The invention concerns a pallet stone for cooperating with the teeth of an escapement wheel of a watch or clock movement, said pallet stone comprising a trailing plane and an impulse plane and at least one capillary channel acting as a tank for a lubricant, characterized in that said capillary channel connects said trailing plane to said impulse plane.

Abstract: Can be mounted in clock mechanisms, especially in the form of a perpetual calendar which is actuated via a wheel of a clock, which wheel performs a revolution in 24 hours, the display being effected separated into units and tens via a printed display disc, which is provided with a toothing, and a program carrier being provided which performs a revolution in 31 days, it is provided that the program carrier (4) actuates additional locking elements in such a manner that, on those days on which the risk of over-rotation exists, they are swung in and out again in the rotational movement of the display discs (2, 3) and correspondingly prevent over-rotation in cooperation with the toothings (9, 16) of the display discs (2, 3). In the case of a calendar mechanism, especially of a modular structure, which.

Abstract: The present invention concerns a device for winding and setting the time of a timepiece such as a date watch (1) including a date disc (14), characterised in that the device includes a crown (12) arranged in the top plane of the watch (1) parallel to the plane of the movement (18).