Abstract: A mechanism for setting a clock hand indicates for example a date in defined positions of a scale. The mechanism includes a cam disc and a first rake which is connected to the cam disc in a force-transmitting manner and has teeth which engage into the teeth of a pinion and transmit a force. A second rake has teeth that engage into the teeth of the pinion. The second rake exerts a force on the teeth of the pinion that is opposite to the force exerted by the first rake exerts on the pinion. The first rake and the second rake are arranged so as to overlap, and the second rake can be borne pivotally around the first axle. The embodiment has the advantage that it is space-saving and the rakes stabilize one another mutually.

Abstract: Day of the month display mechanism for watch movement, comprising two mobiles (1), each bearing a sequence of digits (10). The two mobiles are disposed in such a manner that, at least for certain dates, the day of the month (3) displayed to the user corresponds to the combination of indications borne by the first mobile (1) and of indications borne by the second mobile (2), whilst for other dates, the day of the month (3) corresponds to the combination of two digits borne by the same mobile (2). The second mobile (2) is driven by the first mobile (1) through a star wheel (50) held by a jumper (51) to prevent the undesired rotation of said star. A banking element (511) is arranged in a manner to prevent said jumper from passing directly from one tooth (501) of the star to a non-adjacent tooth when the date changes.

Abstract: A mechanism is disclosed for setting a clock hand, which indicates for example a date in defined positions of a scale. The mechanism comprises a cam disc and a first rake which is connected to the cam disc in a force-transmitting manner and has teeth which engage into the teeth of a pinion and transmit a force. A second rake likewise has teeth that engage into the teeth of the pinion, wherein the second rake exerts a force on the teeth of the pinion that is opposite to the force exerted by the first rake exerts on the pinion. According to the invention, the first rake and the second rake are arranged so as to overlap, and the second rake can likewise be borne pivotally around the first axle. The embodiment has the advantage that it is space-saving and the rakes stabilize one another mutually.

Abstract: Gear for day of the month display mechanism in a watch movement, including: a driving organ (1), a driven organ (50), characterized in that said driving organ (1) is provided with z1 first teeth (120) and z2 second teeth (121), the height of the second teeth (121) being lower than the height of the first teeth (120), and in that said driven organ (50) is provided with z3 third teeth (501) and z4 fourth teeth (503), the height of the third teeth (501) being greater than the height of the fourth teeth (503), the height of the z1 first teeth (120) allowing the z3 third teeth (501) as well as the z4 fourth teeth (503) to be driven, the height of the z2 second teeth (121) allowing however only the z3 third teeth (501) but not the z4 fourth teeth (503) to be driven.

Abstract: Gear for day of the month display mechanism in a watch movement, including: a driving organ (1), a driven organ (50), characterized in that said driving organ (1) is provided with z1 first teeth (120) and z2 second teeth (121), the height of the second teeth (121) being lower than the height of the first teeth (120), and in that said driven organ (50) is provided with z3 third teeth (501) and z4 fourth teeth (503), the height of the third teeth (501) being greater than the height of the fourth teeth (503), the height of the z1 first teeth (120) allowing the z3 third teeth (501) as well as the z4 fourth teeth (503) to be driven, the height of the z2 second teeth (121) allowing however only the z3 third teeth (501) but not the z4 fourth teeth (503) to be driven.

Abstract: Day of the month display mechanism for watch movement, comprising two mobiles (1), each bearing a sequence of digits (10). The two mobiles are disposed in such a manner that, at least for certain dates, the day of the month (3) displayed to the user corresponds to the combination of indications borne by the first mobile (1) and of indications borne by the second mobile (2), whilst for other dates, the day of the month (3) corresponds to the combination of two digits borne by the same mobile (2). The second mobile (2) is driven by the first mobile (1) through a star wheel (50) held by a jumper (51) to prevent the undesired rotation of said star. A banking element (511) is arranged in a manner to prevent said jumper from passing directly from one tooth (501) of the star to a non-adjacent tooth when the date changes.

Abstract: Micro-generator for a clockwork movement. It contains a rotor provided with two disks and a stator with three coils connected in series. Each disk is provided with six permanent magnets with alternating north-south polarity. The coils are mounted on a module containing an electronic circuit. This circuit controls the speed of the generator in that it compares the frequency of the signal at the output of the generator with a reference frequency derived from a quartz oscillator and changes the load of the generator by means of a variable brake resistance.The micro-generator is constructed in such a way that the peak voltage of the generated signal is as high as possible and the space requirement inertia and frictional resistance of the rotor are kept as low as possible. To achieve this, the coils of the rotor are disposed on the module asymmetrically with respect to the axis of the rotor. The coils can have a maximal surface, the micro-generator being easily mountable.