Abstract: An electronic watch including a movement, and the movement includes a movement main body, a plate manufactured by a ferromagnetic metal, and a hook having flexibility, and the plate includes an engagement part that protrudes from the rear surface of the plate and which is configured to accommodate one end part of the hook, and the one end part of the hook is configured to be accommodated by the engagement part by elastically deforming the hook, and the other end part of the hook is fixed to the movement main body.

Abstract: A watch is delimited by a case formed of a back cover and of a middle part. A timepiece movement is disposed in a casing ring housed inside the watch case. The watch also includes a dial disposed on top of the casing ring and held by a fixing ring. The fixing ring has an S-shaped cross-section. An upper branch of the fixing ring is supported on the dial and a lower branch of the fixing ring is supported on the casing ring. The lower branch of the fixing ring is clamped between the middle part and the casing ring, so as to grip the dial between the upper branch of the fixing ring and the casing ring.

Abstract: The watchcase includes a top portion (11) for holding a watchglass (1), a case back (40), and a case middle (10) with a circumferential case wall (12) arranged between the top portion and the case back. The watchcase further includes at least one ring (20), which extends around the case wall (12) and is rotatably arranged with respect to the case wall (12). The at least one ring (20) is arranged such that it accessible from the outside for a manual rotation.

Abstract: The invention relates to a watch with a rigid casing-up, comprising: a middle (1); a bottom (2); a movement (3, 3bis, 3ter, 3quater, 41); and a casing-up ring (4, 4bis, 4ter, 42) in contact with the middle (1). The casing-up ring (4, 4bis, 4ter, 42) has an inner peripheral face (8, 17) and the movement (3, 3bis, 3ter, 3quater, 41) is secured to an outer peripheral face (7, 13, 18, 18bis), said inner (8, 17) and outer (7, 13, 1, 18bis) peripheral faces being in contact with each other in the Z and Z? regions thereof. Said watch is characterized in that it also comprises a tightening element (5, 5bis) provided for exerting pressure on the casing-up ring (4, 4bis, 4ter, 42) or the movement (3quater). The invention also relates to a method for casing-up such a watch.

Abstract: A timepiece is equipped with a movement (module), a solar cell panel, a ring member, and a dial (timepiece display plate). The panel is fixed to the module. The ring member is fixed to the peripheral portion of the movement. The ring member has, at a plurality of positions thereof, recesses, and a pair of engagement protrusions protruding upwardly from the bottom of each recess. The recesses are respectively open in an upper surface and the outer peripheral surface of the ring member. The pair of engagement protrusions form a gap G between them, and are capable of elastic deformation. A proximal portion of each engagement protrusion is situated below the upper surface of the ring member. The dial has cutouts at a plurality of positions of its peripheral portion. Each of these cutouts is engaged with each pair of engagement protrusions to cover the panel, and the dial is mounted to the ring member such that the peripheral portions of the cutouts cover the recesses.

Abstract: A timepiece is equipped with a movement (module), a solar cell panel, a ring member, and a dial (timepiece display plate). The panel is fixed to the module. The ring member is fixed to the peripheral portion of the movement. The ring member has, at a plurality of positions thereof, recesses, and a pair of engagement protrusions protruding upwardly from the bottom of each recess. The recesses are respectively open in an upper surface and the outer peripheral surface of the ring member. The pair of engagement protrusions form a gap G between them, and are capable of elastic deformation. A proximal portion of each engagement protrusion is situated below the upper surface of the ring member. The dial has cutouts at a plurality of positions of its peripheral portion. Each of these cutouts is engaged with each pair of engagement protrusions to cover the panel, and the dial is mounted to the ring member such that the peripheral portions of the cutouts cover the recesses.

Abstract: This watch case comprises a protective casing surrounded by a middle (5) and a bezel (9). The protective casing includes a glass (3), a side wall (2) and a bottom (1). A planar peripheral surface extending along the entire edge of the inner face of the glass is in contact with a similar bearing surface on the side wall (2), at least part of which forms the width of the cross section of a pressure resistant structure having parallel lateral faces (SR) perpendicular to the bearing surface, and which extends without a gap as far as the bottom (1) of the casing. The components of the casing are secured and sealed with at least one annular seal (4) surrounding the lateral face of the glass (3) and the outer lateral face of the side wall (2) of the casing, and this seal is clamped.

Abstract: An integrated circuit for analogue electronic watch applications, comprising an oscillator circuit for generating clock signals, stepper motor driver circuit for generating motor driving signals, a plurality of trimming capacitors for fine-tuning the output frequency of the oscillator circuit and a corresponding plurality of electronic switches for selectively connecting/disconnecting said trimming capacitors to said oscillator circuit and switching circuitry for switching-in and/or -out the electronic switch, wherein said stepper motor driver circuit being connected to said oscillator circuit and comprising means for converting said clock signals into said motor driving signals, said switching circuitry comprises means to control the switching-in and/or switching-out of said electronic switches whereby oscillator frequency is fine-tuned, said plurality of electronic switches being selectively controllable and operable by switching control signals applied at said frequency trimming port.

Abstract: A watch design that has a movable case that keeps the face of the watch visible regardless of the position of the wrist. In this way, a user can quickly see the watch face in the proper orientation so that the time can be quickly and correctly determined. There are several ways to accomplish this. The case can be mounted on a turntable that rotates on the y-axis. A frame containing the watch mechanism and display is hinged on said turntable and rotated vertically upon the x-axis described by the hinge-mounted frame mounted on said frame. Another embodiment uses a gimbaled point on which the face is free to rotate, much like a compass. In this embodiment, the watch case is weighted to that the face always moves to a readable position. Finally, the watch may include displays mounted in the link of a watchband.

Abstract: A thin timepiece having a module stably fixed therein has a case integrated with a wrist band and a case back, the case having an opening portion on a front surface side thereof, a module having a housing formed of a resin and a timepiece movement held by the housing, the module being removable retained in the opening portion of the case, and a cover glass for covering the opening portion of the case. The housing has at least one two-sided supporting beam integrally formed in a side surface therof and being deformable in a planar direction of the housing, and a fitting projection protruding from each two-side suporting beam, and the module is fixed in the opening portion of the case by inserting the fitting projection into a corresponding engaging recess formed in an inner side face of the case.

Abstract: In a structure in which a rotating bezel is mounted on a case body, the present invention provides the structure which permits the rotating bezel to be mounted and removed without difficulty even if a brittle material and a deformation difficult material is used in the rotating bezel. When the rotating bezel 25 is pushed downward, the lower end of the engaging rib 25a of the rotating bezel 25 is abutted against the upper end of the holding rib 21d of a glass fixing ring 21 and stress is applied thereby so that the elastically deformable section 21b of the glass fixing ring 21 is elastically deformed inward, that is, toward the side where a clearance is formed. As a result, the engaging rib 25a goes over the holding rib 21d and the rotating bezel 25 is kept in a held state as shown in the figure.

Abstract: The method for assembling and fixing a casing ring (3) in a watch case (6) uses a ring made of plastically deformable material fitted with means (60, 70) forming a single piece with the ring and capable of positioning it with respect to the case. The ring is introduced into the case, which causes said positioning means to be deformed plastically. The introduction is interrupted when the ring occupies a determined position with respect to the case.

Abstract: A timepiece including a case (24) provided with a back cover (28) and a middle part (26), a movement (30) mounted in the casing ring (32), a dial (34) mounted above the ring (32) and a crystal (36) mounted above the dial (34), said crystal (36) being provided with an annular collar (70) surrounding the flank (64) of the dial (34), characterised in that the casing ring (32) includes means (38) arranged to remove all the play inherent in the dimensional tolerances of the dial (34), the ring (32) and the back cover (28) of the case (24), these means (38) on which the collar (70) of the crystal (36) is supported being arranged at the upper end of the ring (32), along the outer circumference (86) thereof.

Abstract: A watch with a liquid crystal display with the display and the device for controlling the display being formed as two separate pieces so that the display can be inserted through a front side of the watch case body and the control device, such as a printed circuit board, can be inserted through a back side of the watch case body. The liquid crystal display may include a partially reflective sheet in order to provide greater contrast and/or aesthetic appeal. Also, a method for assembling a watch wherein a liquid crystal display is inserted through the front side of the watch case body. This watch and related assembly method can allow a larger size display relative to the size of the watch case body.

Abstract: A water-resistant movement holder for a pocket watch of the type that has a watch casing, comprised generally of a front and back portion that are joined or otherwise held together, a watch movement, a shaft, and a hinged cover portion. The movement holder comprises a primary housing and a mechanism to seal the primary housing within the watch casing. The primary housing has generally enclosed sides, an enclosed top and an open bottom with a generally hollow interior. The generally hollow interior is capable of releasably receiving the watch movement. The primary housing maintains the watch movement therein and limits the ingress of water, dirt and debris into the generally hollow interior and into contact with the watch movement.

Abstract: An element made of elastomeric material (9) is made by overmoulding between the middle part (2) of a watch case and a support ring, in particular a casing ring (3) intended to support the watch movement. This allows the constraints of the inner form and inner machining of the middle part to be reduced, while allowing accurate positioning of the internal elements of the watch with respect to the middle part. The elastomeric element (9) can also assure sealing with the control stem and/or the crystal of the watch.

Abstract: A watch housing has a mechanism carrier, an upper part and a base part which are installed on the mechanism carrier by screws which directly connect the upper part and the base part. Furthermore, sealing members are provided in order to make the watch housing water-tight. The design freedom for the watch housing is improved in advantageous manner by designing the mechanism carrier as a support element and also the upper and base parts as shells.

Abstract: This watch case includes a caseband (1) and a fitting frame (2) inserted into said caseband. The frame includes a first seat (14) in which a bezel (4) rests, said bezel compressing the elastic material (15) forming the frame against the caseband, a second seat (16) in which a dial (7) is inserted, a third seat (18) in which a bead (19) provided on the movement rests, and a fourth seat (20) in which a flange (21) exhibited by the back cover (3) is inserted, such flange compressing the material forming the frame against the caseband. The watch case is sealed and lends itself particularly well to assembly on automated machinery.

Abstract: A timepiece including a ring (6) which assures a quadruple function: that of a water-tight packing between the crystal (1) and the ring; that of securing the caseband (3) to the ring; that of a casing ring for the movement (5) and finally that of securing the back cover to the ring. To this effect the caseband exhibits a cylindrical internal wall (4) entirely overlaid by the ring, said ring exhibiting a first accommodation (8) in which the crystal is engaged, a second accommodation (10) in which the movement is engaged and a lower zone (11) including means (18, 19) for securing the back cover.

Abstract: The setting stem 27 of a watch is engaged in a radial hole 29 of an inner metallic caseband 16 with a packing 31 to assure fluid tightness. An outer caseband 3 of hard material includes a radial hole 28 aligned with the hole in the inner caseband. A crown 32 of the same material as the outer caseband may cap the stem. This arrangement enables uniting the wear resistant properties of the hard material with good fluid tightness of the stem.

Abstract: A timepiece includes an outer caseband 3 formed entirely in one piece of a hard material which likewise includes a hub member 4 providing the timepiece dial, and a metallic inner caseband 16. An annular step 10 for positioning and glue fastening a crystal 9 surrounds the hub member. This arrangement gives the hard material the rigidity necessary to resist forces acting thereon during manufacture and subsequently when the watch is worn.

Abstract: The case is essentially made up of a hollow middle cum glass unit (1), consisting of an integral glass pressing, and of a metal back (10) closing off a cavity (5) defined by the inside surface of the hollow unit, the cavity providing a housing for a movement.In the cavity is mounted a metal ring (15) having a centering flange (16) bearing against the middle portion of the unit. In the space between the ring and the middle portion are inserted a deformable rubber gasket (19) and a metal annulus (18) whose radially outer surface is formed with a bevel (18') in the region nearest the gasket.Screws (20) secure the back (10) to the ring (15) and press it against the annulus (18). On being driven home, the screws wedge the bevel (18') between the gasket and the ring thereby to apply a radial force on the gasket . This force presses the gasket against the middle portion of the unit and prevents it from moving out of the cavity.

Abstract: A watch middle cum plate is described that comprises an annular middle-forming portion and a plate-forming portion which is surrounded by the middle-forming portion and which is formed with recesses for receiving components of the watch movement. The middle cum plate is provided with a protective coating of which a first part essentially covers the plate-forming portion and of which a second, thicker, more resistant part covers at least the visible surfaces of the middle-forming portion.Such middles cum plates may be made from flat brass blanks by machining recesses in their central portion for receiving components of a watch movement, by applying to the blanks a layer of material that is chemically more inert than brass to form the first part of the above coating, stacking and assembling the blanks such that at least the above central portions of the blanks with the recesses are masked, and applying to the visible regions of the stacked and assembled blanks the above second part of the coating.

Abstract: A dial and movement fixing structure comprising a ring having legs that are held between a case ring of a watch case and a back cover, and a dial attached to the ring, wherein projections formed on the ring are introduced into a plurality of notched portions formed in the periphery of the dial such that the dial is fixed to the ring.