Abstract: The present invention proposes an electronic watch including a display device comprising a time dial, a first hand and a second hand which pivot coaxially, independently driven by two drive members, and in a first display mode, one hand indicates the hour and the other indicates the minutes of the current time in reference to their respective positions on the time dial. In an original manner, the watch further includes a control member able to activate a second display mode, in which the first and second hands are positioned in reference to the time dial so as to respectively indicate the tens and units of the date.

Abstract: The calendar mechanism includes a 31 wheel set (31) for controlling a date indicator, a date drive means for driving the 31 wheel set, a 12 wheel set (12) for controlling a month indicator, and a monthly drive means for driving the 12 wheel set at the end of each month. The monthly drive means is activated by the 31 wheel set during the change from the end of one month to the first day of the next month. The calendar mechanism further includes a manually activated month corrector device arranged to advance the 31 wheel set in one stroke to an angular position corresponding to the indication of the first day of the next month, so that the monthly drive means, activated by the change from one month to the next, increments the 12 wheel set by one step.

Abstract: The invention relates to a mechanism (5) comprising a measuring system (11, 13) mechanically connected to a display system (9) for displaying a time-related or other piece of information (2, 14). According to the invention, the display system (9) includes a quick correction device (10, 12) with an epicycloidal gear train for correcting said display of time-related or other information (2, 14) at any time while maintaining the relationship between the display system (9) and the measuring system (11, 13) during the correction phase. The invention particularly concerns the field of timepieces.

Abstract: The invention relates to a timepiece (1) including a timepiece movement (5) comprising a time measuring system (11) for displaying the time, and a date system (13) connected to said time measuring system for displaying the date. According to the invention, the date system (13) includes a display of the continuously moving type and a correction device (12) which can correct said date display at any time, by a predetermined step (A, B), while maintaining the relationship of said continuous movement relative to that of said time during the correction operation. The invention concerns the field of date displays.

Abstract: Provided is a radio-controlled wristwatch, including: reception means (11) for receiving a radio wave from a satellite to extract time-of-week specifying information and week specifying information; clock means for counting a current date and time; date and time adjustment means for adjusting the current date and time counted by the clock means; week information holding means for holding the week specifying information; week information updating means for updating the week specifying information held in the week information holding means based on the current date and time counted by the clock means; and week information reception limiting means for limiting the reception of the week specifying information performed by the reception means, and controlling the reception means to receive the week specifying information in a predetermined case.

Abstract: The timepiece movement comprises a running equation of time device having a pipe (113) provided to support a minute hand for solar time mounted concentrically to the minute and hour hands for civil time, an equation of time cam (101) rotatably driven by the movement at the rate of one revolution per year, and a correction mechanism provided to periodically adjust the angular displacement of the minute hand for solar time in relation to the minute hand for civil time as a function of the angular position of the equation of time cam.

Abstract: There is provided an information processing apparatus, including a first information acquisition section which acquires priority action information, a second information acquisition section which acquires biological information related to a body clock of the user at a present time, a state setting section which sets an ideal state of the body clock corresponding to the priority action, a state estimation section which estimates a present state of the body clock at the present time, a third information acquisition section which acquires set action information related to a set action, and a display control section which displays a state of the body clock in the schedule on a display section.

Abstract: A two-directional date corrector mechanism controlled by a pull-out piece for a date mechanism. The mechanism includes a 24 hour wheel, a date updating finger pivoting integrally therewith, a date driving star-wheel, and a corrector star-wheel meshing therewith and located between the date driving star-wheel and the finger and configured to be uncouplable from the finger under action of an uncoupling mechanism controlled by the pull-out piece, the uncoupling mechanism having a coupling position where the corrector star-wheel meshes with the finger, and an uncoupling position where it is released from the finger to allow the date to be corrected. A date mechanism can include such a date corrector mechanism and a timepiece can include such a date corrector mechanism.

Abstract: The invention concerns a programmable and reprogrammable mechanical memory wheel (30) for a timepiece, including a wheel (31) that is mobile about an axis of rotation (33). It is wherein it includes a mobile heart-piece (40) which pivots relative to said wheel (31), between indexing positions (34) of said wheel (31) with which said heart-piece (40) is arranged to cooperate via an indexing finger (41) included therein and towards which said heart-piece is returned radially by resilient return means (43), and which includes at least one support surface (45) arranged for cooperating with a timepiece mechanism. The invention also concerns a timepiece mechanism incorporating at least one memory wheel of this type (30), wherein, in proximity to each wheel (30), it includes support means arranged for cooperating with said support surface (45) of said memory wheel (30) in a disconnectable manner.

Abstract: The calendar mechanism includes a 31 wheel set (31) for controlling a date indicator, a date drive means for driving the 31 wheel set, a 12 wheel set (12) for controlling a month indicator, and a monthly drive means for driving the 12 wheel set at the end of each month. The monthly drive means is activated by the 31 wheel set during the change from the end of one month to the first day of the next month. The calendar mechanism further includes a manually activated month corrector device arranged to advance the 31 wheel set in one stroke to an angular position corresponding to the indication of the first day of the next month, so that the monthly drive means, activated by the change from one month to the next, increments the 12 wheel set by one step.

Abstract: A day clock has day, hour, and minute hands revolving continuously around a common center. It has a time adjustment knob and a day adjustment knob. When the day adjustment knob is pulled out, a set of gears are disengaged, allowing the day hand to be adjusted with that knob without affecting the other hands. Then, when the set of gears are reengaged, the time adjustment knob can be utilized to set the time of day. In order to set the day and time accurately, the user may first set the time to midnight with the time adjustment knob, pull out the day adjustment knob, set the day to a clock face line between days with that knob, push that knob back in, and then set the time to the correct time with the time adjustment knob.

Abstract: A day clock has day, hour, and minute hands revolving continuously around a common center. It has a time adjustment knob and a day adjustment knob. When the day adjustment knob is pulled out, a set of gears are disengaged, allowing the day hand to be adjusted with that knob without affecting the other hands. Then, when the set of gears are reengaged, the time adjustment knob can be utilized to set the time of day. In order to set the day and time accurately, the user may first set the time to midnight with the time adjustment knob, pull out the day adjustment knob, set the day to a clock face line between days with that knob, push that knob back in, and then set the time to the correct time with the time adjustment knob.

Abstract: The dial (4) of the watch is fitted with an indicator (10), preferably with a hand (11), which displays the function fulfilled by a control crown (8), respectively, in each axial position of the crown, including a highly water resistant position in the case of a screwed-in crown. The indicator is controlled by axial movements of a sleeve (15) secured to the crown, via a transmission mechanism (30) including a slide block (35) that is mobile parallel to an axis of rotation (14) of the crown. The hand is secured to a pinion (32) meshed with a rack (34) arranged on a slide block. The slide block includes a flexible part (38) between a back part that slides in a groove (36), and a front arm (39) provided with a lateral finger (40) engaged in an annular groove of the sleeve. This transmission is compact and facilitates assembly and removal.

Abstract: There is provided an analog radio-controlled timepiece made so as to be capable of performing a time difference correction by a simple operation while maintaining an operability of a time difference correction timepiece. A radio reception section receives, through an antenna, information of a minute and a second in a time code included in a standard radio, and an operation section corrects only a minute hand and a second hand to the minute and the second, which were received. A correction of an hour hand is performed by operating a crown included in a time difference correction mechanism.

Abstract: Timepiece including a two-directional correction mechanism for a device displaying a time related quantity, the display device being actuated by a control lever (14) itself controlled by a cam (10), on which the control lever (14) abuts, the timepiece being characterized in that it includes a correction device (36) activated by a control stem (42) which, in the display device correction phase, via a return lever (24), moves the control lever (14) out of the path of the cam (10) on which said control lever (14) normally abuts in the normal operating phase of the timepiece (3).

Abstract: A calendar corrector is disclosed for arrangement in a movement of a watchmaking part provided with a calendar display and, for example, a thirty-one wheel which goes round in thirty-one days. In one implementation, the corrector comprises a manual control, enabling information relating to the fact that the current month comprises less than thirty-one days to be introduced, and programming means coupled to the thirty-one wheel, responding to the information introduced by the control, such that the display can be corrected automatically at the end of the current month.

Abstract: The device for adjusting a time indicator includes a gear train (1), the kinematic chain of which includes a sliding pinion (2) driven by a driving wheel set (3). The sliding pinion drives a driven wheel set (4) when the driving wheel set rotates in a first direction (A) and disconnects from said driven wheel set when said driving wheel set (3) rotates in a second direction (B), opposite to the first direction. The shaft (6) that the sliding pinion (2) includes is engaged in a groove (7) having first (9) and second (12) end portions, at least the first end portion (9) of which is directed radially (R) to the driven wheel set (4).

Abstract: To provide an electronic timepiece having a simple constitution, being excellent in durability in an electronic timepiece and made to change date display of date display means in accordance with rotation of a time hand. A 24 o'clock detecting switch detects 24 o' clock. A crown rotation switch is made ON when a crown for rotating a time hand is rotated regularly by a predetermined angle and a crown rotation switch is made ON when the crown is rotated reversely by the predetermined angle. A control circuit determines whether a rotational direction of the crown is regular rotation or reverse rotation based on the numbers of operating the crown rotation switches ON, when the 24 o'clock detecting switch detects 24 o'clock, the control circuit 106 regularly rotates or reversely rotates date display of the date display means in the direction in accordance with a result of determination of the direction of rotating the crown to change date to tomorrow or yesterday.

Abstract: An electronic timepiece with date display function reduces power consumption in conjunction with the user adjusting the date, and makes it easier for the user to set the date. A displayed date detection unit H has a day detector H1 for detecting the displayed day, a month detector H2 for detecting the displayed month, and a year detector H3 for detecting the displayed year. A control unit A controls a calendar mechanism drive unit F according to the date detected by detectors H1 to H3.

Abstract: According to this method the units and tens numerals are placed onto respective indicator runners (1, 2). Two drivelines are formed, one being a daily driveline between the clock movement and the indicator runners, for moving the units indicator runner (1) selectively step by step by one step every 24 hours, and for moving the tens indicator runner (2) by one step for every ten steps of the units indicator runner (1), in order to move on from one multiple of ten to the next, and for moving the tens indicator alone by one step to move on from “31” to “01” on a 31-day cycle, and an annual driveline between the clock movement and the tens indicator runner, which driveline is programmed to move the tens indicator runner (2) by one step at the same time as the units indicator runner (1) is moved by the daily driveline, to move on from “30” to “01” at the end of the months which comprise less than 31 days.

Abstract: The invention relates to a timepiece comprising a time train, a 31-toothed wheel, a wheel of units of 30 teeth plus a space corresponding to a tooth which is used to drive a star-wheel of units and a four-toothed wheel for driving a star-wheel of tens, a year cam which is solidly connected to a wheel, and drive means for driving said 31-toothed wheel by one revolution per month and the year cam by one revolution per year. The aforementioned 31-toothed wheel is solidly connected to a corrector element. The drive means comprise a cam which is solidly connected to a wheel, a driving yoke, elastic means which are used to press said yoke against the cam, a corrector yoke, a feeler which is arranged to detect the position of the year cam and elastic means in order to connect said yokes to one another.

Abstract: To provide an electronic watch with calendar without the need to adjust the calendar when the watch is restarted. A control mechanism 133 is provided which uses a signal from a 24-hour switch 12 which operates in synchronism with a time mechanism converter 6 as a signal for operating a date display drive converter 51 during normal watch operation, and uses a signal from a 24-hour counter which receives a signal from a time mechanism circuit 60 as a signal for operating the date display drive converter 51 at other times.

Abstract: When an analog indicator is enabled, the position of the time indicator is detected by an indicator position detection circuit. When the indicator arrives at a predetermined position, typically 24:00, a CPU advances calendar data to a correct date and stores the calculation result in a calendar counter. The CPU outputs a drive instruction signal to a date-indicating wheel drive pulse generating circuit to drive a date-indicating wheel to the correct date. The date-indicating wheel drive pulse generating circuit then drives the date-indicating wheel to a renewed position. At this time, a time counter is cleared to 0:00 and is synchronized with the position of the analog indicator. When driving of the analog indicator is disabled, such as by the pulling out of a crown switch, and the time counted by the time counter arrives at a predetermined time, typically 24:00, the CPU advances the present calendar data to the correct date and stores the calculation result in the calendar counter.

Abstract: A switch (201) is conjoined with a hand driving gear train (107) and provided with at least three or more contact groups (203, 204, 205) turned on at least once in each 24 hours. A calendar indicating member is updated according to an order of closing each contact. The matching between the time indicating and the calendar indicating can be accomplished when a user modifies the time display.

Abstract: This invention concerns a timepiece of the mechanical and/or electromechanical type. Such piece comprises a first display mechanism (1), in particular a date display, a second display mechanism (2) such as a moon phase display, rapid correction means (4) for both display mechanisms (1, 2) and a driving organ (6) which controls such display mechanisms (1, 2) and which can absorb equally the displacement of one or the other of these mechanisms, such piece being characterized in that the rapid correction means (4) comprises meshing means (64) common to both mechanisms (1, 2), mounted for rotation and adapted to operate alternatively upon one or the other of such two mechanisms (1, 2) under the action of control means (72, 74). This invention is applicable to calendar and moon phase watches having a center date hand.

Abstract: A clock apparatus includes a clock circuit having a display portion for displaying time and date and a non-volatile memory. Upon every usage of the apparatus, at least the year at the present time is taken from the clock circuit and is stored in the memory. Upon turning on a power supply for driving the clock circuit after turning-off of the power supply, a setting unit reads the content of the memory and sets at least the year of the read content in the clock circuit as an initial value.

Abstract: A process for programming the perpetual calendar of a watch with analog time display is effected using elements incorporated in the watch. The hand of the watch and the position of the hand is used to indicate the steps of the programming. The operation of the stem places the watch in the program mode. If it is required to program three parameters, namely, the number of the year in a four year cycle, the number of the month of the year and the day of the month; and if the watch has a hand setting stem with three positions, each parameter to be programmed is allocated to a position of the stem and the parameters to be programmed are read from the second hand by allocating to the latter real steps corresponding to stopping positions and non allowable steps corresponding to non stopping positions.

Abstract: A timer apparatus in which a stored reservation date to record a program and the present date are compared and when the reserved date is past the present date the reserved date is automatically changed to the nearest future date of the same day of the week, so that user efforts are simplified and required memory space is decreased. When it is necessary to make a change in the date or day of the week being displayed, by repeating a plurality of selected display patterns within a predetermined time period it appears to the user that the date or the day of the week is being continuously and sequentially changed at a high speed, whereas only the selected patterns are being sequentially displayed.

Abstract: A colon appearing on the display of an electronic digital timepiece between the hours and the minutes display serves as a display means for the time complexes "daylight-saving time" and "standard time", One point of the colon is surrounded by a first symbol for daylight-saving time and the other point is surrounded with a second symbol for standard time. In accordance with the selected time complex, these symbols appear on the display either continuously or for a period of time upon being recalled.

Abstract: The watch has a first motor for driving a time display, a second motor for driving a numerical indicator of the day of the month, a perpetual-calendar circuit, a first transmission circuit, a non-volatile memory, a second transmission circuit, an initialization circuit and a detection circuit for generating a signal when the cell that energizes the circuit is being replaced. The calendar circuit includes day, month, and year counters. The contents of the month and year counters are transferred to the non-volatile memory by the first transmission circuit in response to periodic signals. The date on which the watch stops at the end of the cell's life is memorized by the day of the month indicating means and the non-volatile memory. Upon insertion of a new cell and in response to the detection signal, the contents of the non-volatile memory are transferred into the month and year counters by the second transmission circuit.

Abstract: A basic clockwork, initially arranged in such a way as to comprise two supplementary indicators, of the date and of the days of the week, which have been removed, is provided with an additional module carrying supplementary indicators, which can number two, three or even four. These indicators being separate from the basic clockwork, their position can be chosen very freely by a constructor. In order to prevent having to provide the clockwork with one or several supplementary control members, for the correction of said indicators, a correcting mechanism of the basic clockwork, comprising a control stem operating a sliding pinion is used. A shaft of the sliding pinion has been extended up to a frame of the additional module and carries a pinion meshing, according to the sense in which the control stem is operated, either with a wheel belonging to a correcting gear train of one of the supplementary indicators, or with a pinion belonging to a correcting gear train of another supplementary indicator.

Abstract: A watch comprises a first motor (2) for driving a time display (4), a second motor (23) for driving means (20) for numerically indicating the day of the month, a perpetual-calendar circuit (30), a first transmission circuit (40), a non-volatile memory (41), a second transmission circuit (42), and a detection circuit (43) for generating a signal (S43) when an energy supply cell is being inserted to energize the circuits. The calendar circuit includes counters (31, 32, 33) generating a calendar signal (S30) representative of the date. This signal is periodically transferred to the non-volatile memory by the first transmission circuit in response to periodic signals (Sx, Sm, Sa). The date at which the watch stops at the end of the cell's life remains memorized in the non-volatile memory and in the day of the month indicating means.

Abstract: A watch having a crown for setting the motion work and having a device, which can be driven by the hour wheel of the movement of the watch, for the automatic display of the months and the days of the month in accordance with the Gregorian calendar. In this connection, the display of the day of the month can be driven by a date wheel 13 and the display of the month by a month wheel 22 of the device. A year wheel of a year display and a decade wheel 26 of a decade display and possibly a century drive of a century display form together with the wheelwork of the month display and the day of the month display a closed coupling-less calendar wheelwork train whose date wheel 13 can be set by a correction device.

Abstract: The liquid crystal display cell (21) indicates the date in an aperture situated at 12 o'clock. The hour wheel (31) and the center wheel (29) present coaxial pipes which pass through the dial and bear hour and minute hands. These wheels are driven by a wheel-train (30, 28, 27) actuated by the stepping motor (25) which receives its pulses from the circuit (23) controlled at a frequency of 1 Hz for example by the quartz (48). The 24-hour wheel (33) bears a contact element (46) which, once per revolution, grounds the terminal (47). The pulse which results therefrom is transmitted to a counter incorporated in the circuit (23). This counter controls the decoding circuit which controls the display cell (21). To effect the setting of the date, the stem (35) is brought into its intermediate position (II). The contact element (40) borne by the yoke (38) then grounds the terminal (41), which causes in the circuit (23) the emission of pulses at a frequency of 1 Hz which controls a repeated and rapid change of date.

Abstract: This invention provides a leap year compensation circuit. Date data from an electronic watch circuit is compared with leap year data from a memory circuit. If this date data represents a leap year, the next day after the end of February is corrected to a date in a leap year calender. Leap year compensated date data is set in the watch circuit.

Abstract: A wristwatch with a stepping motor driving the hands through a normal gear train also includes a supplementary gear train driving a circumferential date ring showing the calendar date. The gear train includes a planetary gear assembly, which may also be selectively operated by an exterior manually rotatable button to change the date without interfering with the normal driving of the date ring from the stepping motor. Preferably the manually rotatable button is operable from the back of the watch using a ball-point pen or the like.

Abstract: A manually operable setting stem 1 has three stable axial positions defined by a pull out piece 4 cooperating with notches in the head 8a of a spring 8. The illustrated position is a pushed in, neutral position. In an intermediate pulled out position, a return bar 9 moves a sliding pinion 12 into engagement with a gear 17 in mesh with a gear 18 which is in turn in mesh with a gear 19 whose axis can swing about the axis of the gear 18. In the intermediate position, rotation of the stem in one sense adjusts a data ring 14 via a star-wheel 20 on the gear 19; rotation in the other sense adjusts the pre-set alarm time via a gear 21. In the fully pulled out position the return bar slides the pinion 12 further inwardly and with it the gear 17 which meshes with a gear 24 for setting the time indicating mechanism. The stem can be pushed in beyond the stable pushed in position to engage the tip 1a of the stem with an electrical contact. Such operation alternately turns the alarm mechanism on and off.

Abstract: An electronic timepiece is provided with a photo-electric cell generating an output voltage indicative of incident illumination levels, circuit means for converting this output voltage into digital data signals, and a liquid crystal display which is driven in response to the data signals such that successive sections of the display act to progressively unmask a rear reflector plate to thereby indicate the illumination level. The circuits for converting illumination level to data signals are based on an oscillator circuit whose frequency is controlled by the photo-electric cell voltage, and digital means for measuring this frequency, so that the circuit configuration is very simple and power comsumption extremely low.

Abstract: A timepiece having both analog and digital display includes a single stem operated correcting mechanism which adjusts each display independently. A correcting pinion, slidably mounted on a winding stem, provides for engagement at both ends thereof. In a first axial position of the winding stem, one end of the pinion engages a wheel train for correcting the analog display when the stem is rotated. In a second axial position of the winding stem, the correcting pinion engages a spring biased cam whereby electrical switches are intermittently opened and closed when the stem is rotated for correcting the digital display. Advancement or retardation of the displays depends on the direction of stem rotation.

Abstract: A watch with a calendar display and a hand setting device actuated by a setting shaft for correction measures as a function of the instantaneous position of the setting shaft is disclosed. For this purpose, a coupling element is rotatably coupled with the setting shaft. The coupling element is displaceable from an intermediate position into one of two preparatory positions dependent upon the direction of rotation of the setting shaft in a first axial position. By moving the setting shaft into a second axial position, the coupling element is transferred by a reversing lever and a slotted link from the preselected preparatory position into a corresponding one of two stable working positions. In the working positions, a rotatable connection is established between the setting shaft and one of the calendar display disks.

Abstract: An electronic watch comprising a device for controlling and driving the day of the month disc, wherein the wheel train supplies the energy necessary for moving the day of the month disc, but does not determine the instant of the jump, which may be initiated at any moment by an electrical signal, independently of the position of the wheel train.The device comprises a mechanism driven by the wheel train and arranged so as to disengage when the moving bodies of the wheel train, controlling the display, turn continuously in clockwise direction and to re-engage when said moving bodies turn in anti-clockwise direction. A control circuit determines, in a portion of the driving cycle in an anti-clockwise direction of rotation with a rapid rate, the jump of the display disc of the day of the month mechanism.

Abstract: A calendar mechanism of a motor driven analog timepiece is automatically adjusted, at the end of a 30-day month to the first day of the next month. A month detecting circuit distinguishes between 30-day months and 31-day months, and at the end of the 30th day of a 30-day month it controls the timepiece motor to run backward and then forward at a relatively high speed to change the calendar to the first day of the month. Circuitry is also provided to distinguish between 28 and 29-day months, and to correct the date displayed at the end of February in a similar manner.

Abstract: In a timepiece movement, more particularly a quartz wrist watch movement, having a low-torque stepping motor, there is provided a differential mechanism which drives the hands and makes it possible to move the hour-hand alone in jumps. A cannon-pinion having a toothing acts as a sun gear. A planet gear is mounted on an hour-wheel which acts as a planet carrier. A ring gear takes the form of an annulus having internal teeth which is normally stationary but is controlled by a stem and can be rotated by jumps to cause the planet gear to roll along the cannon-pinion toothing, thus causing the planet carrier and consequently the hour hand to jump.

Abstract: A watch includes a quartz-controlled electronic drive circuit for the control of the clockwork mechanism of a pointer-driving system for analog display of the time of day, and a digital read-out unit and control circuit for the display of additional data such as month, day of the month, day of the week, and the like. A synchronizing unit is located between the analog and digital systems to provide a synchronous link between the time of the day and the digitally displayed data. This synchronizing unit is coupled with the pointer-driving clockwork mechanism and generates a synchronizing pulse which is derived from the clockwork, preferably at a rate of one pulse per 24 hours. The synchronizing pulse is fed into the display control circuit to synchronously advance the digital read-out of the month, day of the month and day of the week, for example.

Abstract: A timepiece is described having an electromechanical analogue display for rtain information and an electronic digital display for other information. Synchronizing means for the displays may consist of a signal generator associated with the analogue display driving mechanism and arranged so that at predetermined periodic intervals the signal generator may be operated so as to provide a synchronizing signal to the digital display.

Abstract: A watch module construction including a liquid crystal display cell of a polygonal profile in plan, with one internal angle of the profile being in the range 180 degrees to 360 degrees, and an analog display device including time indicating hands. A cell support frame is disposed on one side of each of a base plate and a circuit board aligned substantially on the same plane as the base plate. The cell support frame has a first recess in which the liquid crystal display cell is disposed, and a second recess in which the time indicating hands are disposed. An IC chip is mounted on the other side of the circuit board in substantially axial alignment with the display cell, and a wheel train mechanism is disposed on the other side of the base plate in substantially axial alignment with the time indicating hands.

Abstract: This invention relates to a battery powered electronic wristwatch having a time changing device accommodated in a recess in the base plate of the watch which device operatively is connected to the adjustment shaft manipulatable externally of the watch casing to alter the position of the hands of the watch. The time changing device includes a pivotable setting lever which cooperates with the adjustment shaft and a spring for controlling the movement of the setting lever. A fixed body portion of the spring has a portion of its periphery shaped so as to conform to a peripheral portion of a base recess for accommodating the watch battery.

Abstract: Timepiece comprising means for attaining the function of measuring the time, a time display means, at least part of which is mechanically formed, a means for changing the displayed content of the time display means in response to the operation of an external actuating member and a means for setting information for setting the condition of a timepiece function in accordance with the operation of the external actuating member, the time display means serving as the display of the information to be set upon the setting of the information whereby there may be easily effected the setting of functions except the time setting without increase of the complication of the display means.

Abstract: An electro-mechanical watch for advancing the uncorrected watch indicating members to their correct time indicating positions, after a correction period during which one of the indicating members is adjusted and the advancement of the uncorrected members is interrupted. In regular operation, a pulsed signal at a normal frequency from a watch frequency divider drives a stepping motor to advance the indicating members. At the beginning of the correction period, the pulsed signal is switched from the stepping motor to a pulse counter which counts the pulses occurring during the correction period. After the correction period, the pulsed signal is switched back to the stepping motor and a number of signal pulses at a higher than normal frequency, equal to the count of the pulse counter are applied to the stepping motor to advance rapidly the uncorrected indicating members to their correct time indicating positions.

Abstract: An electronic timepiece comprising a counter circuit adapted to present reference data indicative of an existing year, month, date and day of the week, and operative to count leap years, years, months, dates, and days of the week at a high speed with a preset reference data as a starting point, a register for storing calendar data indicative of a desired year, month, date and day of the week to be determined, a comparator for comparing the content of the counter circuit and the content of the register and generating a coincidence signal when the contents are in agreement, and a controller for halting counting operation of the counter circuit in response to the coincidence signal to cause a display device to display the contents of the counter circuit to obtain an indefinite item concerning calendar.