Abstract: Device for electromechanical watch (1) allowing an electronic control circuit of the watch (1) movement to determine the moment at which and the direction in which an indication showing a magnitude of time has to be corrected, said device including a wheel (68), which is driven by the watch (1) movement and carries means (70, 72) for actuating first and second detection means (46a, 46b) connected to the electronic control circuit, said electronic control circuit deducing, from the moment at which and the order in which the first and second detection means (46a, 46b) are actuated by the means actuating the wheel (68) driven by the watch (1) movement, the direction in which the wheel (68) is being driven by the movement at the moment when the magnitude of time has to be respectively incremented or decremented.

Abstract: Timepiece gear train device (1) of reduced height with a large power reserve, driving display means (4) including a cannon-pinion (5) and an hour wheel (6), which are driven about a main pivot axis (AP), secant to a barrel (3), by a motion work (7) and including a driving wheel (8), which pivots about a secondary pivot axis (AS) external to said barrel (3) and is friction coupled to said motion work (7) on a friction surface (9) coaxial to said secondary pivot axis (AS). Said driving wheel (8) includes a driving cannon pinion (83) pivoting about a wheel body (80) along said secondary pivot axis (AS) and coupled by a friction spring (84) to a shoulder (85) of said wheel body (80) forming said friction surface (9), said driving cannon-pinion (83) cooperating with a minute wheel (14) pivoting about a minute axis (AM).

Abstract: Timepiece sub-assembly including a spacer for guiding a pivoting wheel set on a bottom plate and including a shoulder for cooperating with a housing in said bottom plate and a stop surface for abutting against said bottom plate. It includes a drive means fixed to said wheel set, arranged to slide relative to said spacer with an axial shake, determined between a first stop position between a collar of said wheel set and a front face of said spacer, and a second stop position between a stop surface of said drive means and a rear face of said spacer. Said wheel set includes, opposite said collar, a machined portion arranged to cooperate with a complementary machined portion of a display element to fixedly secure said display element to said wheel set.

Abstract: Control mechanism (1) for loading an energy accumulator (20) for a timepiece (100) or a timepiece movement (10) via an intermediate winding mechanism (25), said mechanism (1) comprising a winding button (2) arranged to drive, at least in translation, a winding stem (3) which can occupy at least an initial longitudinal position (T0) for said energy loading.

Abstract: The invention relates to a method (31) for fabricating pallets (3) for an escapement system (1). According to the invention, the method (31) includes the following steps: a) forming (31), using a first material, the lever of the pallets (3) a first end of which includes the dart (15) and a second end includes two arms (11, 13) each for receiving a pallet stone (10, 12); b) over-moulding (35) a second material on said first end in order to form a pallets fork (17); c) adjusting (37, 39) said pallet stones and a staff (14) to enable the pallets (3) to be rotatably mounted. The invention concerns the field of escapement systems for timepieces.

Abstract: Timepiece movement including a module fitted with a first wheel set meshing with a second wheel set, which pivots on a base on which the module is mounted. The movement includes a means of positioning the module formed by a cam, at least most of the periphery of which forms an Archimedes' spiral. The cam is arranged so as to allow the distance of centres between the first and second wheel sets to be adjusted, when the cam is rotated on itself about the centre of the Archimedes' spiral. The cam is preferably calibrated. The invention also concerns a method of adjusting the distance of centres between the two wheel sets using said cam to optimise the gearing efficiency of the two wheel sets.

Abstract: Device for electromechanical watch (1) allowing an electronic control circuit of the watch (1) movement to determine the moment at which and the direction in which an indication showing a magnitude of time has to be corrected, said device including a wheel (68), which is driven by the watch (1) movement and carries means (70, 72) for actuating first and second detection means (46a, 46b) connected to the electronic control circuit, said electronic control circuit deducing, from the moment at which and the order in which the first and second detection means (46a, 46b) are actuated by the means actuating the wheel (68) driven by the watch (1) movement, the direction in which the wheel (68) is being driven by the movement at the moment when the magnitude of time has to be respectively incremented or decremented.

Abstract: There is disclosed a method for manufacturing and mounting electric contacts for control members of small dimensions, particularly for control members used in the horological field.

Abstract: The present invention concerns a control device for electronic apparatus of the electronic stem type, adapted to be shifted between a plurality of axial positions. According to one preferred embodiment, the stem (1), with axis X, has four different axial positions. Two contact clips (21, 22, 60, 61) mutually offset in the direction of the axis X are provided to make contact with two respective power supply terminals (19, 20, 75, 76) of a source of electrical power supply. The stem comprises a plurality of cylindrical portions (36, 38, 50, 51, 52) which cooperate with deformable extensions (27, 28, 64, 65) of the contact clips to deform them in a direction substantially perpendicular to the axis X. Thus, in accordance with the axial position of the stem (1), the contact clips (21, 22, 60, 61) can be in different electrical states, i.e. isolated or connected to the source of power supply, independently of one another.

Abstract: The present invention concerns a device for mounting a source of electric energy (100), preferably a button-type battery, for a portable electronic apparatus including a housing (3, 44), closed by a cover (14, 49), for said energy source. The housing includes, in proximity to its periphery, tongues (5, 32) that can be deformed for holding the energy source axially in the housing. Further, the cover includes a wall (15, 50) projecting into the housing and arranged between the periphery of the housing and the tongues retaining the energy source. The wall of the cover thus ensures that the tongues are held properly against the energy source when the latter is arranged in the housing, in particular in the event of a violent shock.

Abstract: There is disclosed a method for manufacturing and mounting electric contacts for control members of small dimensions, particularly for control members used in the horological field.

Abstract: The watch according to the invention includes a movement (2) on which a dial (4) is assembled and which is mounted in a casing ring (12) itself mounted in a case (14) including a crystal (16) secured to a bezel (20), a middle part (24) and a back cover (22). According to the invention, the case (4) includes an inner tubular part (38) at least partially surrounding the casing ring (12) and itself surrounded by the middle part (24) and snap fitting assembling means (64, 76) for connecting the back cover (22) and the bezel (20) via the inner tubular part (38). Moreover, this tubular part is designed to allow the casing ring (12) and the middle part (24) to be angularly positioned with respect to each other. In order to do this, it can have an axial slot (98) open towards the back cover (22), which an external projecting portion (94) of the casing ring and an internal projecting portion (96) of the middle part penetrate.

Abstract: The dial (3) is secured onto a lower element (10) of the case, preferably the casing ring. The lower element (10) includes at least two through passages (12) each having a first part (13) forming an orifice (14) on the dial (3) side separated from a second part (17) on the opposite side, by a neck portion (15), the whole of the first part and at least a portion of the second part of said passages (12) being filled with an adhesive material (19) having a strong power of adhesion to at least the material forming the lower face of the dial (3).

Abstract: The present invention concerns a control device for electronic apparatus of the electronic stem type, adapted to be shifted between a plurality of axial positions. According to one preferred embodiment, the stem (1), with axis X, has four different axial positions. Two contact clips (21, 22, 60, 61) mutually offset in the direction of the axis X are provided to make contact with two respective power supply terminals (19, 20, 75, 76) of a source of electrical power supply. The stem comprises a plurality of cylindrical portions (36, 38, 50, 51, 52) which cooperate with deformable extensions (27, 28, 64, 65) of the contact clips to deform them in a direction substantially perpendicular to the axis X. Thus, in accordance with the axial position of the stem (1), the contact clips (21, 22, 60, 61) can be in different electrical states, i.e. isolated or connected to the source of power supply, independently of one another.

Abstract: The present invention concerns a device for mounting a source of electric energy (100), preferably a button-type battery, for a portable electronic apparatus including a housing (3, 44), closed by a cover (14, 49), for said energy source. The housing includes, in proximity to its periphery, tongues (5, 32) that can be deformed for holding the energy source axially in the housing. Further, the cover includes a wall (15, 50) projecting into the housing and arranged between the periphery of the housing and the tongues retaining the energy source. The wall of the cover thus ensures that the tongues are held properly against the energy source when the latter is arranged in the housing, in particular in the event of a violent shock.

Abstract: The watch case includes a back cover (2), a middle part (3) and a bezel (4) closed by a crystal (5) delimiting together a space in which a watch movement (1) is housed for an analogue or digital time display on a dial (6) arranged below the crystal (5). It is characterized in that the bezel (4) is made of metal and has locally a ring (14) of sufficient thickness to include in its lower portion a first series of threaded holes (11) for screwing in a first series of screws (10) for fixing the movement (1) onto the bezel (4) and a second series of threaded holes (21), offset angularly with respect to the first series, passing through the movement (1), and intended for screwing the back cover (2) into the lower part of the bezel (4).

Abstract: The watch according to the invention includes a movement (2) on which a dial (4) is assembled and which is mounted in a casing ring (12) itself mounted in a case (14) including a crystal (16) secured to a bezel (20), a middle part (24) and a back cover (22). According to the invention, the case (4) includes an inner tubular part (38) at least partially surrounding the casing ring (12) and itself surrounded by the middle part (24) and snap fitting assembling means (64, 76) for connecting the back cover (22) and the bezel (20) via the inner tubular part (38). Moreover, this tubular part is designed to allow the casing ring (12) and the middle part (24) to be angularly positioned with respect to each other. In order to do this, it can have an axial slot (98) open towards the back cover (22), which an external projecting portion (94) of the casing ring and an internal projecting portion (96) of the middle part penetrate.

Abstract: The dial (3) is secured onto a lower element (10) of the case, preferably the casing ring. The lower element (10) includes at least two through passages (12) each having a first part (13) forming an orifice (14) on the dial (3) side separated from a second part (17) on the opposite side, by a neck portion (15), the whole of the first part and at least a portion of the second part of said passages (12) being filled with an adhesive material (19) having a strong power of adhesion to at least the material forming the lower face of the dial (3).

Abstract: Peripheral lighting device for the scale of a dial (11) of an apparatus of small dimensions including a case (1) in which are housed a movement (14) driving at least one hand (12a, 12b, 12c) with respect to the scale, a power source (6) and an electronic circuit (15) able to supply a pulsed voltage, said case being closed by crystal (4) extended on the dial side by an annular extension forming a flange (17), characterized in that a circular recess (19) is provided inside the base (18) of the flange (17) to accommodate on the one hand, an electroluminescent ring (20) formed of a strip having a border (21) extending beyond the base and a connecting lug (22), and on the other hand a ring (30) made of translucent plastic material forced into the annular recess (19) to hold the electroluminescent ring (20) at the bottom thereof.

Abstract: Control button having a metal body (10) provided along its axis with a blind hole (16) closed by a cap (18) and extended by a wall (14) of revolution. The body (10) includes a groove (20) made in the outer surface of the wall (14) and channels (26) connecting said surface to the inside of the blind hole (16). The button further includes a fitting (12) made of synthetic material, formed of a ring (28) closing the groove and extended radially by raised portions (34) as far as the openings of the channels (26) in the wall (14) of a radial structure with several branches (30) closing the channels (26), and a core (32) connecting the branches (30) to secure between them the different parts (28, 30, 32, 34) of the fitting (12).