Abstract: A method for making an oscillating weight for an automatic winding mechanism of a self-winding watch including a central part made from a first composite material and a heavy sector made from a second composite material charged with heavy metal particles, the method including: forming the central part with a lateral rib and a rebate by injecting the first composite material into a mold; overmolding the heavy sector onto the central part by injecting the second composite material into a mold containing the central part, so that the second composite material fills the rebate and a gap underneath the lateral rib, so that the lateral rib is embedded in the second composite material and the central part and the heavy sector are interlocked.

Abstract: Method for forming a transparent timepiece component including top and bottom surfaces: a transparent polymerizable material is chosen; there is applied to a plate a flexible female mold including a capillary network and having a contact surface which is the negative of the bottom surface, bordered by an edge; a cavity is delimited by the sealed juxtaposition of the edge with a plate having a contact surface which is the negative of the top surface; the material is injected through the capillary network to fill the cavity; the material is polymerized to obtain a rigid component; the component is removed from the plates by the deformation of this flexible mold. Hardness is improved by the UV exposition of this component.

Abstract: A timepiece wheel overmolded onto an arbor. The wheel is plastic injection overmolded onto a washer fitted onto the arbor. This washer has a lower density than the arbor. This washer includes at least one plane surface forming a bearing and sealing surface for cooperating in a sealed manner with an injection mold for the overmolding operation. The timepiece wheel may be an escape wheel whose teeth are formed during overmolding onto the arbor and the washer, and it includes an escape pinion mounted and abutted to the washer or integral with the washer.

Abstract: A method for making an oscillating weight for an automatic winding mechanism of a self-winding watch including a central part made from a first composite material and a heavy sector made from a second composite material charged with heavy metal particles, the method including: forming the central part with a lateral rib and a rebate by injecting the first composite material into a mold; overmolding the heavy sector onto the central part by injecting the second composite material into a mold containing the central part, so that the second composite material fills the rebate and a gap underneath the lateral rib, so that the lateral rib is embedded in the second composite material and the central part and the heavy sector are interlocked.

Abstract: The oscillating weight for a self-winding watch mechanism is made by molding a plastic material charged with heavy metal particles. Moreover, the plastic material is also charged with fibers, wherein said fibers form between 1.5% and 7% of the total weight of the charged plastic material, and the density of the charged plastic material is greater than 8.

Abstract: Timepiece assembly (30) including at least two opposing wheel sets (20), coupled to each other and cooperating by contact with each other on peripheral contact surfaces (200). Each peripheral contact surface (200) of each coupled wheel set (20) in this assembly (30) is the peripheral surface of a skin (210) of plastic material.

Abstract: The oscillating weight is intended to be used in a self winding watch mechanism. It includes a basic part (1) made of composite material and heavy metal elements (9). The basic part includes an inner portion (5) and a peripheral portion (3), with the peripheral portion including housings in which the heavy metal elements are set.

Abstract: Timepiece wheel (1) overmoulded onto an arbour (2). The wheel is plastic injection overmoulded onto a washer (3) fitted onto said arbour (2). Said washer (3) is of lower density than that of said arbour (2). Said washer (3) includes at least one plane surface (4) forming a bearing and sealing surface (40) for cooperating in a sealed manner with an injection mould for the overmoulding operation. A particular version is an escape wheel whose teeth are formed during overmoulding onto said arbour (2) and said washer (3), and it includes an escape pinion (5) mounted in abutment on said washer (3) or integral with said washer (3).

Abstract: Method for forming a transparent timepiece component including top and bottom surfaces: a transparent polymerisable material is chosen; there is applied to a plate a flexible female mould including a capillary network and having a contact surface which is the negative of the bottom surface, bordered by an edge; a cavity is delimited by the sealed juxtaposition of the edge with a plate having a contact surface which is the negative of the top surface; the material is injected through the capillary network to fill the cavity; the material is polymerised to obtain a rigid component; the component is removed from the plates by the deformation of this flexible mould. Hardness is improved by the UV exposition of this component.

Abstract: The oscillating weight for a self-winding watch mechanism is made by moulding a plastic material charged with heavy metal particles. Moreover, the plastic material is also charged with fibres, wherein said fibres form between 1.5% and 7% of the total weight of the charged plastic material, and the density of the charged plastic material is greater than 8.

Abstract: The invention concerns an electronic watch including analogue display means formed of at least one hand (10) driven by a stepping motor (12), at least one time base (24, 26) for providing time data (h. m) to means (16) for controlling and driving said stepping motor, a main power source (20), means (22) for detecting a lack of sufficient power from said main power source, non-volatile storage means (32) powered by an additional power source (28), for containing said time data when a lack of sufficient power is detected, and characterized in that said non-volatile storage means are further provided for containing the stepping motor position data (?pas) when said lack of sufficient power is detected.

Abstract: The invention concerns a device (1) for assembling an electronic component (2) including an outer case (3). This case is for connection to an external electric circuit via contact means (4) and is arranged for containing a support (5), to which the electronic component (2) is secured. The support is arranged for connection to the contact means of the outer case via at least one contact pad (8) placed on the support. The contact pad enables the electronic component secured to the support to be electrically connected to the contact means of the outer case via connecting means (6). In particular, the connecting means and the electronic component support are arranged such that the support is suspended by the connecting means so that the support remains mobile.

Abstract: The invention concerns a fluid dispensing device, characterised in that it comprises: a dispensing member (10) including: a conduit (42, 44) allowing through a transporting liquid (52), a valve (48) fixed to one of the ends (38) of said conduit, a dispensing needle (12) arranged at the other end (38), means for measuring the flow rate (46) of the transporting liquid (52) in the conduit, control means (54) for circulating the said liquid through said conduit in one direction or the other, and electronic means (58, 60) reacting to said measuring means (46) and acting both on said valve (48) and said control means (54) to cause a specific amount of fluid (30) to be sucked into the needle (12), and then to be restored.

Abstract: The invention concerns an electronic watch including analogue display means formed of at least one hand (10) driven by a stepping motor (12), at least one time base (24, 26) for providing time data (h. m) to means (16) for controlling and driving said stepping motor, a main power source (20), means (22) for detecting a lack of sufficient power from said main power source, non-volatile storage means (32) powered by an additional power source (28), for containing said time data when a lack of sufficient power is detected, and characterized in that said non-volatile storage means are further provided for containing the stepping motor position data (?pas) when said lack of sufficient power is detected.

Abstract: The invention concerns a fluid dispensing device, characterised in that it comprises: a dispensing member (10) including: a conduit (42, 44) allowing through a transporting liquid (52), a valve (48) fixed to one of the ends (38) of said conduit, a dispensing needle (12) arranged at the other end (38), means for measuring the flow rate (46) of the transporting liquid (52) in the conduit, control means (54) for circulating the said liquid through said conduit in one direction or the other, and electronic means (58, 60) reacting to said measuring means (46) and acting both on said valve (48) and said control means (54) to cause a specific amount of fluid (30) to be sucked into the needle (12), and then to be restored.