Abstract: A timepiece which includes a case (2), a horometric movement (4) housed within the case (2) and means for broadcasting an electromagnetic signal including electronic means (12) for furnishing the signal and at least one broadcasting antenna (14) coupled to the electronic means (12). Such timepiece is characterized in that the antenna (14) is arranged on a first face (20a) of a support plate (20) of basically planar form arranged in the interior of the case (2), such antenna (14) being constituted by a thin metallic layer deposited on the face (20a) of the support plate (20). This timepiece is applicable to the control of an arrangement, for example for latching and unlatching, of a door in particular.

Abstract: The invention relates to an integrated circuit memory device 1 in which connecting terminals 11b for transmitting signals between itself and an external device are provided on a bottom surface of a coin-shaped case 10 containing an integrated circuit memory chip 12. A changeover switch 20 for changing the memory chip 12 to a data-writing mode is provided at an outer peripheral side portion of the coin-shaped case 10. The switch 20 has an operation knob 24 located in a notch 13A formed in a ring-shaped core member 13 of the case 10, and a contact plate 22 formed integrally with the knob 24. The switch 20 selectively switches the memory chip 12 in a data-writing mode and in a data-writing protect mode. In the data-writing protect mode, the write (WR) signal supplied to a write terminal of a circuit substrate 11 is prevented from being input to a write electrode of the memory chip 12.

Abstract: An electronic device with multiple functions has a base case provided with an input key unit on an upper surface and a plurality of openable cases which are openably mounted on the base case so as to be freely open and closed. The base case has an arced guide thereon. The openable cases are arranged so as to be stacked on the base case when closed. One of the openable cases has a moving member which is movably engaged with the arced guide for connecting the openable case to the base case. The openable cases each are provided with an electro-optical display unit on a rear surface. The openable cases except the outermost openable case each are provided with an input key unit on an upper surface.

Abstract: It comprises a standard electronic movement (13) held in the case (1) by means of an encasing ring (15) made of synthetic material and also containing a large-sized accumulator (30) gripped between two conductive plates (16, 29). The upper plate (16) is covered with an insulating film (18) pierced with a hole (19), through which the blade (14) of the battery receptacle of the movement comes in contact with the plate (16). The other pole of the accumulator is connected to the movement by means of the base (3), the case (1) and the dial (10). The encasing ring (15) carries photovoltaic cells (21) illuminated through indentations (22) of the dial. The timepiece can advantageously be produced in small series, and its power reserve is very high.

Abstract: A small-sized electronic instrument such as an electronic wrist watch and others in which a plurality of parts are stacked and firmly held together by tightening a screw. The electronic instrument includes a base plate and a screw housing portion, which are integrally molded of a hard plastic material. The screw housing portion includes a bore formed therethrough and adapted to receive a self-tapping screw. When the self-tapping screw is threadingly received in the bore of the screw housing portion, a plurality of parts stacked around the screw housing portion are firmly tightened and held together. The screw housing portion has a shoulder including a step formed therein at the middle portion between the opposite ends. On assembly, the step engages one of the stacked parts. Even if the screw housing portion is pulled upwardly by the tightened self-tapping screw, the part sandwiched between the self-tapping screw and the step limits the upward movement of the screw housing portion on tapping.

Abstract: A watch movement is a combination of a chronograph module and a motor module, the motor module comprising a third wheel, a first power take off composed of a toothed wheel fixed to the cannon-pinion and a second power take off composed of a pinion fixed to the seconds axle in the center, the chronograph module having a chronograph hand, a hand for the minute counter and a hand for the hour counter. This watch movement also has a third power take off composed of a wheel fixed to the third wheel, these three power take offs being accessible from the same side by the upper face of the motor module and the chronograph module being placed against said upper face of the motor module, and in that the hand of the chronograph, the hand of the minute counter and the hand of the hour counter are driven respectively and in independent manner by said second, third and first power take offs.

Abstract: Analog timepiece movement adapted for a large diameter, thin energy cell, the movement comprising a molded frame of insulating material having a top central wall, and having depending peripheral side wall portions. A flat bridge of insulating material divides the movement into an inner cavity. A stepping motor and gear train are disposed in the inner cavity and a quartz crystal is disposed outside of the cavity. One of the wheel assemblies is of non-magnetic material and extends through a hole in by the stepping motor stator. The peripheral wall portions and the bridge together define a circular envelope in the outer cavity adapted to locate and contain said energy cell. The movement is substantially elliptical in shape, the ellipse having a minor axis slightly greater than that of the energy cell, and the quartz crystal is disposed on one end of the elliptical frame alongside the energy cell.

Abstract: The timepiece of this invention comprises an electromagnetic motor (100) the stator (2) of which is flat and at least partially covered by a reinforcement plate (68) of non-magnetic material or, if need be, of very low magnetic permeability which has been attached to it, preferably by welding, prior to subjecting it in bulk along with others, to reheating thereby to protect it during such operation against the risk of deformation or breakage which would render it thereafter unusable. In conformity with the invention and to avoid such plate becoming a useless extra part taking up space in the timepiece, it includes means which enable it to form at the same time another element of the timepiece. Such element may be for instance a trigger piece jumper spring (72) which cooperates with a trigger piece (212) in order to define stable positions of a manual control stem (184) which may be axially displaced.

Abstract: An integrated circuit package encapsulates a volatile memory chip and a backup battery for preserving data in the event of loss of main power supply. The package includes a finger lead assembly encapsulated within a body of non-conductive material, with a central base support finger lead being offset within an interconnect region. One terminal of the battery is welded to the offset base finger lead, and the integrated circuit chip is bonded directly onto the other battery terminal by a layer of conductive epoxy. The stacked assembly of the integrated circuit chip, the battery and the offset base finger lead is centered longitudinally and vertically within the interconnect region whereby the stacked assembly, including gold interconnect wires, are completely encapsulated within the molded package body, without increasing the standoff height of the package.

Abstract: In an electronic apparatus with a first case and a second case movable to opening/closing positions of the first case, there is provided electro-optical converting means at a portion of the first case which is located opposite to the second case when the second case is opened at a predetermined opening angle. The electro-optical converting means converts an electric signal obtained from a first electronic circuit employed in the first case into an optical signal. Then, an optical-electro converting means is employed at a portion of the second case which is located opposite to the electro-optical converting means when the second case is opened at a predetermined opening angle. The optical-electro converting means converts the optical signal produced from the electro-optical converting means into an electric signal.

Abstract: A very compact package for an electronic data module, which includes battery-backed memory. A two-part metal container is used, which has two shallow concave pieces which fit together. The integrated circuit (in a low-height package, such as a flat-pack or SOIC) is mounted on a very small flexible printed circuit board, which fits inside the container. Laterally spaced from the integrated circuit, on the other end of the small flexible board, the board end is sandwiched between a battery and a piece of elastic conductive material (such as conductive plastic foam). Thus, the battery is connected between one face of the container and a power conductor on the board. The piece of elastic conductive material makes contact between a data trace on the board and the other face of the container. Another trace on the board makes contact directly to the container face on which the battery's ground terminal is connected.

Abstract: A module for a watch which indicates time based on clock signals generated by a quartz oscillator. The module includes two batteries disposed across a wheel-train. A circuit block has an arm extending to a motor coil through a space between the wheel-train bridge, supporting the wheel-train and one of the batteries. Driving signals are supplied to the coil from the circuit pattern on the arm of the circuit block.

Abstract: An electronic wrist watch having a sound producing unit and an electrooptic data display unit, has a single flat plate member a lower surface of which is contacted with a user's hand, and a case member which is attached to one end of the plate member so as to be freely opened and closed over the plate member. A switch input section for data input is mounted on an upper surface of the plate member. An analog display unit for displaying time with hands, and a sound emitting section are mounted on the upper surface of the case member so as not to overlap each other. An electrooptic data display unit for displaying data is mounted on the lower surface of the case member. A sound producing unit and an electronic circuit for driving the analog display unit and the sound producing unit are housed in the case member.

Abstract: A clock assembly organization including a clock head removably mounted to a pedestal assembly enabling the clock to be mounted either onto a vertical or horizontal support surface by selective securement of the clock head to the pedestal assembly.

Abstract: A removable cover (10) for closing an opening (15) of a battery housing in an electronic watch having an armature (7) which is a flat metal disc with central and peripheral openings in which a molded cylindrical packing member (9) is anchored. The back (14) of the watch case is formed with a circular opening (15) with a particular profile suited to the diameter of the packing member (9). The latter, by radial compression, secures the cover and provides fluid-tightness. All of the operations for mass-producing the cover (10) and fitting it are carried out mechanically, without manual intervention, and are automated.

Abstract: A structure for mounting an integrated circuit chip within a timepiece is provided. An insulating circuit substrate supporting a circuit pattern thereon having terminal portions formed on the substrate is mounted on a frame. An IC chip is mounted on the circuit substrate so that the terminals of the IC chip are in facing relationship with the circuit terminal portions. A circuit cover is mounted on the frame over the IC chip and circuit substrate and biases one of the IC chip or circuit terminal portions towards each other so that the chip terminals come into conductive contact with the circuit terminal portions forming a circuit between the circuit on the substrate and the IC chip.

Abstract: The miniature electric clock includes a base plate (28) bearing a motor (11), a going train (21) and time displaying hands (82,100), and a back cover-caseband (10) bearing electrical and electronic elements (7,9) resting on a printed circuit (3) itself fastened to the back cover-caseband. Electrical couplings (15,17) between the motor and the printed circuit are established when the back cover-caseband is united with the base plate. If the clock includes an alarm arrangement other electrical couplings (129,127) are likewise established between the alarm mechanism (66, 88) and the printed circuit when the back cover-caseband is united with the base plate.

Abstract: A case member is coupled to a plate member so as to be movable between an opening position and a closing position with respect to the plate member. A switch input section is mounted on the upper surface of the plate member. An analog display unit for displaying time with hands is arranged on the upper surface of the case member. An electrooptic data display unit for displaying data is arranged on the lower surface of the case member. An electronic circuit for driving the analog display unit and the electrooptic data display unit is housed in the case member. The switch input section on the plate member is electrically connected to the electronic circuit of the case member. Data input from the switch input section to the electronic circuit is processed thereby and is displayed on the electrooptic data display unit. When the case member is set at the closing position, only the analog display unit is exposed.

Abstract: A timepiece includes a clock movement whose axis coincides with the central axis of the case, and a module for displaying the time which is constituted by a unit which is independent of the movement and of the case and whose axis is spaced from the central axis of the case. The elements for coupling the display module to the case are arranged symmetrically about the central axis of the case so as to enable the display module to be arranged in various possible eccentric positions around the central axis of the case.

Abstract: The skeleton watch of this invention includes a caseband (1) bearing a frame (6) arranged between an upper crystal and a back cover (26), a leg (8) contiguous to the frame, a motor (10, 11, 12) secured to the frame and including a rotor directly driving a minutes wheel (15) bearing a minutes marker (17). An hours hand (18) is driven by the minutes wheel through motion work including a train of planetary gears (23, 24). Zones (27 to 32) and conductors (33 to 37) are metallized on the internal face of the back cover and are intended respectively to accommodate the electrical and electronic components and establish connections among such components. The arrangement as set forth permits a greatly bared skeleton watch with a minimum of noticeable elements.

Abstract: A quiet alarm clock comprising a flat rectangular enclosure, and a motor-driven eccentric vibrator positioned within the enclosure. An electronic clock module is removably fastened within the enclosure, and includes a self-contained battery power source, switches for selectively setting time of day and alarm time and an alphanumeric clock display positioned on one wall of the enclosure for ready observation by a user. An alarm output from the clock is fed to a solid-state electronic switch that applies electrical power to the vibrator motor from a second battery power source within the enclosure. The clock module includes an operator panel positioned adjacent to the display and having the time-setting switches mounted thereon, and a hinged flap for removably covering the panel while permitting viewing of the display, whereby the clock module may be employed as a pocket watch separate from the quiet alarm.

Abstract: An alarm timepiece the internal movements and electronic components of which can be arranged and accommodated more efficiently in that the alarm diaphragm with a piezo-electric element attached thereto is obliquely mounted within the frame of the timepiece to lean from the bottom of the timepiece frame against a rising part of the side of the frame. This arrangement taken in conjunction with a sound emitting opening situated between the outer circumference of the bottom and the rising part of the frame of the timepiece provide an unobstructed path for the alarm sound while taking advantage of otherwise vacant space within the internal movement and electronic component compartment of the timepiece.

Abstract: The movement comprises a bottom-plate (1), a gear-train bridge (2), a center gear (14), an hour wheel (24) and a cell (25). The center gear (14) has a shaft (15) and a wheel (19) frictionally mounted on the shaft (15). Within the thickness of the movement, the frictionally mounted wheel (19) is adjacent the cell (25) to one side and the hours wheel (24) to the other side. The movement is so designed that the center gear (14) and the hours wheel (24) may be fitted into place at the very end of the assembly process.

Abstract: A circuit substrate mounting configuration for mounting an IC chip having a built in semiconductor sensor in an electronic timepiece is provided. The circuit substrate is fixed to a base plate at at least two points spaced as far as possible from the IC chip so that the substrate about the IC chip does not contact other elements of the timepiece.

Abstract: A timepiece construction member comprises a timepiece frame, trains, a motor, circuit member and so on. A supporting member for keeping and securing the timepiece construction member is made of a spring plate. The supporting member is engaged with the plate at the periphery thereof and as a result, the timepiece construction member is secured by a simple means. It is possible to provide a securing construction having a high reliability and a small number of members. Further, since the supporting member also serves as the other operating member such as a battery plus terminal, it is possible to provide a small sized securing construction for members. Furthermore, since the members of the timepiece are in contact with an elastic beam of the spring plate, the members of the timepiece can be secured stably.

Abstract: In a time-setting mechanism for an analog time-piece, when an operation member is moved in its axial direction, a pinion provided on the operation member is brought into mesh with a gear which is normally rotated in an interlocked relation to hands. When the operation member is turned in this state, the torque thereof is transmitted via the pinion and gear to the hands for time-setting. The pinion and gear are made of synthetic resins, and the pinion is made of a resin material having higher flexibility than the resin material of the gear.

Abstract: A wrist watch and bracelet assembly in which the case is of bipartite construction and is formed by a base section adapted to accommodate a watch movement and an ornamental face section that is readily replaceable by a face section having a different ornamental display, whereby the decorative appearance of the watch may readily be changed. The base section is provided at either end with a pair of pierced ears that project forwardly from the corners, while the face section which is seated on the base section is provided at either end with an array of equi-spaced lugs having holes therein which register with those in the ears so that by inserting a cross pin through the holes to bridge the ears and the lugs, the two sections are then interlocked.

Abstract: A timepiece movement has a case in which are mounted a driving motor, a gear train driven by the motor, a printed circuit board having a driving circuit for driving the motor, and a battery accommodating portion for replaceably receiving a battery. A pair of battery contacts for electrically connecting the battery to the printed circuit board are provided on the outer surface of the case. One end of each of the battery contacts extends through an opening in the case to make elastic contact with the battery, and the other end of each of the battery contacts extends through another opening in the case to make elastic contact with the printed circuit board.

Abstract: A circuit unit including a plurality of lead frames which are made of a metal sheet and one of which is used for die-bonding an integrated circuit. The die-bonding lead member is formed to have at least a generally H-shaped portion constructed of a pair of parallel side portions and a connecting portion for connecting the two side portions for die-bonding the integrated circuit thereto. The remaining lead members are separated from said die-bonding one and have individual end portions positioned in the vicinity of the integrated circuit and connected electrically therewith by means of bonding wires. The die-bonding lead member and the remaining lead members are integrated either with a potting resin for protection the integrated circuit or with the potting resin and/or an insulating plate backing the potting resin. The aforementioned two side portions are fixed on a holding member. Also disclosed is a process for fabricating the aforementioned circuit unit.

Abstract: An electronic watch has a mechanical analog time-display with hour, minute and second hands. The watch has gear trains disposed in a portion adjacent the axis of the minute hand, and two motors disposed adjacent the gear train for driving the minute hand, hour hand and second hand. A stem is axially shiftably provided adjacent the gear train, and a lever assembly such as a setting lever, clutch lever and sliding clutch wheel is disposed adjacent the stem. A battery is disposed between the lever assembly and one of the motors, and a circuit chip is disposed between the motors.

Abstract: A battery housing comprises a hole entirely piercing the watch base plate and a cover closing the hole. Such cover is secured to the hole by fastening means which comprises in one form a flange projecting into the hole. In the cover moreover a tongue is raised which serves as a mechanical support to one face of the battery and, via a printed circuit arranged between the cover and the battery, the electrical contacting of the battery electrode forming part of said face.

Abstract: There is disclosed an alarm clock comprising a vertical mounting plate having an integral battery case at its bottom, the battery case being inwardly rounded to receive a battery therein, a motor mounted to the mounting plate upwardly of and closely to the battery case and electrically connected to the battery, the motor including an output shaft extending parallel to the plane of the mounting plate, a clockwork mechanism fixedly mounted to the mounting plate forwardly of and closely to the motor and the battery case, a gong mounted to the mounting plate upwardly of and closely to the motor, an alarm hammer unit driven by the motor and having an alarm hammer positioned wthin the gong and swung to strike the gong upon actuation of the motor, and an operating lever surrounded by the motor, the clockwork mechanism and the battery case and reciprocable on the mounting plate in the longitudinal direction of the battery case.

Abstract: The watch comprises a conventional timepiece movement driving the hours-hands, the minutes-hands and the seconds-hands, to which is added a chronograph module the frame of which, having the shape of a bell, covers the movement of the timepiece. The chronograph is autonomous, i.e. its indicators are not driven by the basis movement but by electric motors situated around the central movement, fed by a battery and piloted by a quartz oscillator, the frequency divisions being effected by an integrated circuit. The printed circuit associated with this whole comprises an annular plate surrounding the timepiece movement. An intermediary plate ensures the connection between the timepiece movement and the chronograph module. The transformation of a conventional timepiece movement into a chronograph watch is thus very easy, the chronograph module being able to be applied to very different timepiece movements, only the intermediary plate having to be different.

Abstract: In a case structure for use in a wrist watch, watch parts for displaying the time for the watch user are received in a receptacle, and a band is formed integral to the receptacle to attach said receptacle to an arm of the watch user. The receptacle is made of a rigid plastic material, while the band is made of a flexible plastic material. The watch parts are attached directly to the receptacle.

Abstract: A movement of an electronic watch of analog display type is disclosed, which comprises a base plate made of a synthetic resin, a bearing plate made of a synthetic resin, and facing and spaced apart at a predetermined distance by a spacer from the baseplate and a step motor mounted on the baseplate, and including a rotor, a stator, and a coil. The rotation of the rotor of the motor is transmitted to hands, e.g., minute hand, through a gear train consisting of a plurality of gears, including those journaled between the baseplate and bearing plate. The gear train is made of a synthetic resin.

Abstract: In a mounting arrangement for a wristwatch operating mechanism wherein a base plate carries a circuit board and other circuit components and has a cavity for the reception of a battery with a connector strap extending between the battery cavity and the circuit board for electrical connection of one battery pole with the appropriate contact of the circuit board, the circuit board is mounted on the base by a single screw which extends through the board and at the same time through one end of the connector strap so as to firmly engage the connector strap with the appropriate contact of the circuit board, the connector strap having a full coating of insulating material except for the contact areas with the battery and the circuit board.

Abstract: The base plate bears on one of its surfaces a motor for counting off current time and two motor units for counting off minutes and hours of measured time intervals. On the lower surface it bears a motor for counting off seconds of measured time and a motor for counting off hundredths of seconds of measured time, these latter being partially superposed over the motors on the other surface. A tube is placed so as to locate and guide by its outer surface the display wheel train driven by the current time motor and by its inner surface the display wheel train driven by the motors which count seconds and hundredths of seconds of measured time. Two substrates placed respectively above and below the motors are connected by contact blocks. A control circuit and a quartz resonator are fastened to the lower substrate. The battery is accommodated in a lodging adapted thereto and its thickness extends to both surfaces of the base plate.

Abstract: A system for mounting a clock's working components and dial mechanism on a support platform to form a self-contained assembly which can be easily installed and removed from an enclosure. A clock movement supporting the working components is releasably supported from one side of a rigid, shaped mounting bracket for precise alignment with the dial mechanism which is releasably supported from the opposite side of the bracket by a plurality of dial posts. Attachment of the bracket to the dial panel mounts the movement and dial mechanism as a unit, and the dial panel is mounted on receiving fasteners for easy installation and removal. The bracket is fabricated to close tolerances to ensure alignment of critical components and consistent spacing between the movement and dial mechanism, and is sufficiently rigid to maintain these alignments and spacing and to sustain forces imposed upon the clock during handling and shipment.

Abstract: A thin electronic apparatus comprises as its primary structural components a substrate carrying key counter contacts and a first wiring pattern thereon, and an elastic sheet carrying key symbols on one surface thereof and a second wiring pattern on the other surface thereof. The thin electronic apparatus consists primarily of the substrate bonded to the elastic sheet and electronic components housed in cavities in the substrate.

Abstract: An in-the-wall clock attachable to a preconstructed wall, and partially inserted into a hole in the wall, gives the appearance of having been inserted from the back of the wall prior to construction of the wall. This is effected by means of a ring, preferably a clock time ring, in conjunction with a back plate behind which the clock mechanism is placed. The back plate is surfaced in a similar manner to the wall. The face ring is positioned to mask the edge of the back plate, the combination of time ring and back plate concealing the wall hole. Thus the illusion is created that the clock mechanism was pre-built in the wall prior to final construction of the wall, and that the time ring was subsequently attached to the intact wall to delineate the clock face, or provide the clock numerals.

Abstract: An electronic circuit board of very thin construction for a wristwatch employs a printed circuit board of insulating material with punched apertures for receiving and locating circuit components, such as capacitors, transistors and integrated circuits, which are of substantially the same thickness as the printed circuit board. A thin metallic conductive backplate is also provided with apertures and with bridging portions supporting the circuit components. Tabs on the backplate or on similar conductive clips for supporting circuit elements may be bent upward and extended through the circuit board apertures for making solder connections to discrete components or to conductive pads on the upper side of the printed circuit board. The backplate includes tabs for other purposes such as holding the backplate to the printed circuit board, making battery connections, providing switch terminals, and retaining the module under spring tension in the case.

Abstract: A new and improved band mounting for a wrist watch case is provided for ease of viewing.The band mounting enables a watch case to be elevated from the normal, flat position, and is worn adjacent to the inner wrist, both of these factors contributing to better viewing. In addition, the band is contoured to maintain the watch case relatively fixed on the wearer's wrist.

Abstract: A module construction includes a power source, frequency source, circuit means, analog display and liquid crystal display. The analog display covers the face of the timepiece and the electronic display overlays the analog display. An analog movement is positioned between a stiff metal reinforcement and a spacer member. Circuit means are provided on a stiff substrate and a thin film substrate laid on said stiffer substrate. The spacer member allows for positioning of discrete electrical and mechanical components between the reinforcement and substrates. A circuit holder member supports the substrates and connects with the reinforcement. A portion of the analog movement extends through an aperture provided in the electrical substrate.

Abstract: In an electric clock movement, the electronic components, such as an IC chip (9), a quartz crystal (10) or a diode (12), instead of being fastened to a circuit board are fastened to an extension (8) on the back plate (2). For this purpose, the extension (8) is provided with holes (14) into which the leads (15) of the electronic components are inserted.

Abstract: A precision, reliable, analog timepiece uses plastic frame elements reinforced with metal, and plastic wheel and pinions pivoting in holes formed in the plastic of the frame elements. The plastic frame elements are separated into portions corresponding to the functional timepiece portions. Exposed areas of the reinforcing metal provide reference locations in molding the frame elements and for component mounting. The entire timepiece is assembled from one side of a base frame element.

Abstract: An alarm device for a watch mounted in a recess provided in an upper portion of the watch case, for example in the upper portion of the band connecting portion of the watch case. The alarm device comprises a vibration plate secured to the bottom of the recess, a watertight sealing member, a cover for the vibration plate and securing means such as a screw for fixing the vibration plate to the recess through the watertight sealing member.

Abstract: A motor module for an analog display watch comprises a single mounting plate which is preferably formed by the stator 2 of the motor. The rotor 32 is mounted in the plate 2 by way of members 26 and 30 which form bearings for the rotor 32. The spindles 18, 22 and 24 for the hands are also mounted on the stator 2. Finally, the spindle 44 for gears 46, 47 and 48 between the rotor and the spindles for the hands passes through the stator 2.

Abstract: An alarm device for a watch mounted in a recess provided in an upper portion of the watch case, for example in the upper portion of the band connecting portion of the watch case. The alarm device comprises a vibration plate secured to the bottom of the recess, a watertight sealing member, a cover for the vibration plate and securing means such as a screw for fixing the vibration plate to the recess through the watertight sealing member.

Abstract: An analog-type electronic wristwatch structure comprising a main plate having a central area and first to third areas surrounding the central area. A wheel train mechanism is disposed in the central area, and a time correction mechanism is disposed in the first area. An electronic circuit block is disposed in the second area, and an electromechanical transducer is disposed in the third area. A flat battery is disposed over the wheel train mechanism, the time correction mechanism, the electronic circuit block and the electromechanical transducer.

Abstract: An analog-type electronic wristwatch structure, in which a main plate is made of an insulating material and has one side including a first area formed with a cutout, and second and third areas. A wheel train bridge is secured to one side of said main plate above said cutout to form therein a space, and a wheel train mechanism is disposed in said space. A flexible circuit board is disposed in the second area of said main plate and has its lower surface facing said main plate, said lower surface being provided with a printed circuit pattern. The flexible circuit board carries electronic components composed of at least a time base vibrator and an IC chip. An electromechanical transducer drive coil is disposed in the third area of said main plate. The main plate has recesses for accommodating at least portions of said electronic components.