Abstract: An electronic timepiece includes: a first indicator and a second indicator that are configured to rotate in combination with each other; an operation receiver; and at least one processor. The at least one processor is configured to set a set position that is to be indicated by the second indicator in response to an input operation received by the operation receiver. The at least one processor is configured to cause the first indicator and the second indicator to temporarily stop rotating in combination with each other at a timing when the second indicator indicates the set position, and cause the first indicator and the second indicator to resume rotating in combination with each other after a set time passes.

Abstract: The invention concerns a watch 1 comprising a watch case 2, the watch case 2 containing a watch movement 6 and two dials 8a, 8b. The watch 1 further includes a casing ring 3 arranged inside the watch case 2, the watch movement 6 being mounted in the casing ring 3 so as to be suspended in a cantilever arrangement inside the watch case 2, said casing ring 3 supporting the two dials 8a, 8b.

Abstract: A method is provided to scroll a calendar user interface (UI) comprising: displaying on a device display screen a visible range of a calendar UI, wherein the calendar UI includes a display grid that includes individual date display panes that are associated with individual dates, wherein the date panes are arranged in rows corresponding to weeks and columns corresponding to days of the week and wherein the visible range of the calendar UI includes multiple rows of date panes; receiving user input to indicate a scroll direction in which to scroll the display grid to display a different date range that includes earlier or later date display panes; and in response to the user input, scrolling the calendar UI by rows to the different date range.

Abstract: The present disclosure generally relates to context-specific user interfaces. In particular, the present disclosure relates to an electronic device that includes a user interface having a collection of complications. In some embodiments, a watch user interface is displayed on a display, the watch user interface including an analog clock face area and one or more complications having metrics related to data from an application. In some embodiments, one of the complications is replaced with another complication in response to a sequence of one or more inputs that correspond to a request to add a complication to the watch face.

Abstract: A method is provided to scroll a calendar user interface (UI) comprising: displaying on a device display screen a visible range of a calendar UI, wherein the calendar UI includes a display grid that includes individual date display panes that are associated with individual dates, wherein the date panes are arranged in rows corresponding to weeks and columns corresponding to days of the week and wherein the visible range of the calendar UI includes multiple rows of date panes; receiving user input to indicate a scroll direction in which to scroll the display grid to display a different date range that includes earlier or later date display panes; and in response to the user input, scrolling the calendar UI by rows to the different date range.

Abstract: Mechanism for a watch movement (1) comprising a cam (5), a rack (3) driven by the cam (5), a retrograde mobile (20) driven by said rack (3) and bearing a retrograde indicator (2) for displaying a first item of time information, the rack (3) and the retrograde mobile (20) being arranged in such a way as to rotate in the same direction. A jumping hour display ring is synchronized with the returns of the retrograde display.

Abstract: A watch movement comprising a retrograde mobile, an hours ring bearing an asymmetric internal toothing and driven by the retrograde mobile in order to display the current hour in a jumping way, a correction mechanism allowing the retrograde mobile to be corrected in both directions, a drive member that can be actuated by said correction mechanism and engages with said asymmetric internal toothing so that corrections of the retrograde mobile in the clockwise direction are transmitted to the hours ring, whereas corrections in the counterclockwise direction are not transmitted to the hours ring.

Abstract: The present disclosure generally relates managing display usage. In some embodiments, a device modifies various aspects of a displayed user interface as the device transitions from operating in a first device mode to operating in a second device mode. In some embodiments, the modifications involve altering the content included in a user interface and varying how the content is displayed.

Abstract: A timepiece including an antenna, a holding member arranged with a predetermined space above the antenna, a pointer shaft arranged corresponding to an area above the antenna and rotatably held by the holding member, and a pointer mounted on the pointer shaft.

Abstract: A wristwatch with a gear train for rotatably advancing in cyclic steps a minute-units disk, a switching device for advancing a minute-tens disk and an hour ring which is advanced during one revolution of the minute-tens disk. The movement comprises a first and a second transmission chain connected to a release mechanism; the first transmission chain controls the second such that the second transmission chain transmits every minute a rotational movement force to a minute-units wheel. The release mechanism comprises a control disk, two release levers, each having a first and a second lever arm, and a release wheel. After each minute, a first lever arm falls from the control disk edge into a recess of the control disk and a second lever arm releases the release wheel, such that the second transmission chain rotates freely, allowing the minute-units disk to rotate one digit further.

Abstract: Systems, methods, and software can be used to populate contact information. In some aspect, a starting time and an ending time for a calendar event on a first day is determined. A calendar view for a plurality of days is displayed on an electronic device. The plurality of days comprise the first day. The calendar view comprises a first graphic user interface object representing the first day and a second graphic user interface object representing the calendar event on the first day. The second graphic user interface object indicates the starting time and the ending time of the calendar event.

Abstract: Methods and structure for presenting and analyzing schedule data. One exemplary embodiment is a system that includes an interface and a controller. The controller is able to identify a schedule comprising multiple events occurring over a length of time, to select a cyclic period within the length of time, and to generate a representation of the length of time as a view of a three dimensional (3D) helix wherein each revolution of the 3D helix corresponds with an iteration of the cyclic period. The controller is also able to determine an event location for each of the events along a path defined by the 3D helix, and to direct the interface to transmit instructions for presenting the 3D helix and the event locations via a display.

Abstract: An LED indicator 4 connected to industrial machinery including an inverter 1, includes: an LED substrate 8 into which a display control signal according to a state relating to the industrial machinery is input; and a plurality of displays 31, 32, and 33 configured to display in a lighting state corresponding to a state of the industrial machinery, on the basis of the display control signal input by the LED substrate 8. The plurality of displays 31, 32, and 33 each include a partially circular-arc shape, and are generally arranged in an approximately annular shape. The plurality of displays 31, 32, and 33 include the two displays 31, 32 that generally configure a half ring at one side of the approximately annular shape, and the one display 33 that generally configures a half ring at the other side of the approximately annular shape.

Abstract: Grand date calendar display device for a watch movement comprising a first disc and a second disc, arranged to display, at least on certain dates, first date values through a combination of symbols borne by the first disc and symbols borne by the second disc, wherein the device includes a first coupling mechanism and a second coupling mechanism between the first disc and the second disc such that, at least on certain dates, the first disc drives the second disc, and on certain other dates, the second disc drives the first disc.

Abstract: An electronic timepiece includes a second hand, a dial having a display area provided with a plurality of markings corresponding to the second hand, and a display controller that controls driving operation of the second hand to cause the second hand to display calendar information. The display area, when viewed from a timepiece front side, is divided by two straight lines that pass through a rotating shaft of the second hand and are perpendicular to each other into four divided areas. Each of the divided areas is related to years elapsed since a leap year, and each of the markings is related to the month. The display controller, when causing the second hand to display the calendar information, causes the second hand to point at one of the markings in one of the four divided areas to display the elapsed years and the month.

Abstract: Moon phase display mechanism including a control wheel driven by a movement, which control wheel drives a moon phase disc behind an aperture in a dial, and this mechanism includes: coaxial, superposed and permanently driven in opposite directions, a first phase indicator wheel carrying a first heart cam, and a second phase indicator wheel carrying a second heart cam, and this control wheel includes means for guiding a double lever comprising two arms, only one of which arms is arranged, at any time, to cooperate in contact with one of these second and first heart cams, each to display the moon phase visible in either the Northern or Southern Hemisphere, and to allow the moon phase disc to pivot in the appropriate direction for this hemisphere.

Abstract: Calendar mechanism for timepieces, displaying the duration of the current month and comprising a month cam whose periphery is accessible to a feeler-spindle of a perpetual calendar device to obtain the duration of the current month, this calendar mechanism and the month cam being updated monthly on each current month change by the perpetual calendar device, the month cam is generalised to an integer number of years each including a virtual 28-day month of February, the calendar mechanism includes a leap year mechanism, external to the month cam, and which is arranged to insert radially, every four years in February, a first corrector finger between the periphery and the feeler-spindle to inform the latter that the current month of February has 29 days instead of 28.

Abstract: A device for driving a date mobile (3) of a horological calendar mechanism, the device comprising: a driving mobile (2) including a first finger (20a) and a second finger (20b); a programming mobile (1) including a first set of teeth (10a), a second set of teeth (10b) and a third set of teeth (10c); and the date mobile (3) including a fourth set of teeth (30a) and a fifth set of teeth (30b), the first finger cooperating with the first set of teeth, the second finger cooperating with the second set of teeth, the first set of teeth cooperating with the fourth set of teeth and the third set of teeth cooperating with the fifth set of teeth.

Abstract: A virtual clock switch permits accurate transfer of reference time from a variety of different time sources, transforms the reference time representation into one of a collection of different formats, and makes the reference time available to guest operating system instances running as virtual machines. As a result, reference time accuracy is increased, security improved, and the opportunity for providing redundancy in the event of hardware or software failures. Also, the ability to morph time formats allows the concept to be applied to guest virtual machines without the need to modify the guest operating system.

Abstract: Watch comprising a movement arranged to drive a timepiece calendar mechanism, which includes drive means that drive, at each change in month, complementary drive means arranged to drive a month cam whose periphery cooperates with a month feeler arm comprised in the calendar mechanism, where this month cam covers an angular sector of less than 360°, and the calendar mechanism includes elastic return means arranged to instantaneously return the month cam in a backward movement, in cooperation with the month feeler, to the position of the first month of the year upon completion of the last day of the preceding year.

Abstract: The present application relates to a mechanism for selecting and actuating n functions of a clock movement, where n is an integer no lower than 1, preferably no lower than 2, more preferably no lower than 3, including a winding mechanism rod ending in a crown, a device for actuating a function, said device being kinematically connected to the crown and arranged such as to move and assume n selection positions and n actuation positions in which the actuation device is kinematically connected to an actuation member of the selected function, and a selecting device arranged such as to move the actuation device into a selection position.

Abstract: A vibration generating device includes a motor having a rotation shaft, a rotating body attached to the rotation shaft, a rotation control unit configured to control rotation of the motor, and magnetic generating unit which is disposed at a non-contact position with the rotating body. The rotating body has the center of gravity positioned on an axis of the rotation shaft, is formed of a magnetic material, and generates vibration by a magnetic attraction force applied to the magnetic material by a magnetic field from the magnetic generating unit when the rotating body is rotated.

Abstract: Universal running equation of time mechanism including a differential device outputting a running equation minute, the running equation minute driving a true minute which, via a true equation motion work drives a true hour, the civil time minute cannon-pinion driving, via a motion work wheel set, a civil hour wheel, a jumper spring, integral with the civil hour wheel, cooperating with a star having twelve teeth connected to an arbor carrying a civil hour hand, a time zone wheel also being integral with the arbor, a time difference and display train applying the time difference linked to the longitude position of the user relative to the center of the time zone to the true running equation hour, the time zone wheel applying to the civil hour wheel, in forward or backward one-hour steps, the time difference between the civil time at the place where the user is situated and the time at the center of the time zone.

Abstract: Mechanism for driving an information indicator connected to a timepiece movement and varies according to a plurality of periods, during each of which the information changes, step by step, to a maximum value that varies between n and n?m. The mechanism includes a drive wheel including a first set of gear teeth arranged to advance by n steps per period, m retractable teeth borne by the wheel, encoding cams corresponding to the retractable teeth, each cam corresponding to one maximum value n?x of the information, x being between 1 and m, for a period, and a drive unit to provide adequate rotation speed to the cams relative to the wheel such that, when the information reaches a maximum value n?x for a period, x retractable teeth pass in an operative position and then return to an inoperative position, the wheel advancing by x additional steps for the period.

Abstract: A device (100) for displaying time information with the aid of an indicator member (1), including a cam (2) the profile of which includes a flank (23); a lever (4) driving the indicator member (1); a follower (3) controlling the lever (4), pressed against the cam (2) by first spring means (6), adapted, during movement of the flank (23) in a first direction of movement of the cam (2), to control movement of the lever (4) intended to drive movement of the indicator member (1), characterized in that the follower (3) controlling the lever (4) is adapted to be moved relative to the lever (4) against the return action of second spring means (5) by an action force (F) exerted by the flank (23) of the cam (2) on the follower (3) during movement of the flank (23) in a second direction of movement of the cam (2).

Abstract: A date indication display device for a timepiece includes a support element having a plurality of display areas on which are arranged the indications of the days of the month. The support element moves behind an aperture arranged in a dial of the timepiece. The indications of the days of the month are divided into a first and a second group, the two groups being two different colors. A date indication of the first group is superposed on a date indication of the second group on each display area. A first optical filter whose transmittance is chosen to transmit the first color and to block the second color, and a second optical filter whose transmittance is chosen to transmit the second color and to block the first color, are alternately positioned behind the aperture.

Abstract: A method and system for a Hijri calendar are provided. The method includes: receiving date input for a date conversion; determining a conversion type associated with the date input; determining whether the date input falls within a predetermined Hijri calendar date range; and if the date input falls within the range, using the predetermined Hijri calendar to convert the date input, otherwise, using a predetermined Hijri conversion algorithm to convert the date input and returning a converted date output.

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 timepiece movement has an instantaneous actuator controlled by the movement and arranged to actuate a mechanism of the movement by pushing away one element (126) of the mechanism against a return force. The actuator includes a trailing wheel (205) driven by the movement, an eccentric (207) free to rotate coaxially to the trailing wheel and arranged to abut against and therefore be driven by the trailing wheel, a small wheel (219) returned by a spring against the periphery of the eccentric, a pivoting wheel set having a projecting portion (213) free to rotate coaxially to the trailing wheel and arranged to abut against and therefore be driven by the eccentric, the projecting portion (213) of the pivoting wheel set being arranged to push the element (126) of the mechanism away in passing against a return force.

Abstract: Timepiece displaying the current time and including at least first and second display devices for a time-related quantity, the first and second display devices each being driven by a drive mechanism including a drive wheel (2; 2a), which is itself driven by the movement of the timepiece (3), at least the drive wheel (2; 2a) of one of the drive mechanisms carrying a finger (4; 4a) via which the wheel drives the corresponding display device, the timepiece (3) being characterized in that the finger (4; 4a) is friction fitted onto the drive wheel (2; 2a).

Abstract: Devices, systems, and methods for presenting date and time information are described. In some embodiments, a date and/or a time value is presented as a base-36 number. In some embodiments, an integral portion of the base-36 number represents a date value, and a fractional portion of the base-36 number represents a time value. Each base-36 digit may be represented by one of the numerals 0-9 and the letters A-Z. Both digital and analog clocks and a clock application displaying date and/or time information in which a day is broken into thirty-six increments are disclosed. A clock application displaying coordinates of a location based on a base-36 geo-positioning system is disclosed.

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: Gear wheel for a clock mechanism, including a toothed gear provided with a homogeneous integral peripheral tooth system with at most 16 teeth in a first meshing level; a first meshing sector that is rotationally fixed with the toothed gear and meshes in a second meshing level, wherein the first meshing level is superposed on a first tooth of the toothed gear; a second meshing sector that is rotationally fixed with the toothed gear and meshes in a third meshing level, wherein the second meshing level is superposed on a second tooth of the toothed gear; a third meshing sector that is rotationally fixed with the toothed gear and meshes in a fourth meshing level, wherein the third meshing level is superposed on a third tooth of the toothed gear.

Abstract: Calendar mechanism comprising a program wheel device 100 for a calendar mechanism, wherein the program wheel 100 comprises: a day program wheel 13 that performs a complete turn each month, is driven by a clock movement and actuates a wheel train for display of the days of the month 16-24, and a month program gear 43 that performs a complete turn each year, which are mounted coaxially.

Abstract: The present invention generally relates to computer and web-based calendaring systems. Specifically, this invention relates to systems and methods for synchronizing, organizing and analyzing calendars, events and the scheduling thereof. Embodiments of the present invention allow one or more users to schedule events based on specific categorizations, search and match calendar availability and usage based on such specific categorizations, both on their own schedule and the schedule of others, and provide statistical analysis of personal and third-party calendars based on time utilization and categorization of events/time spent.

Abstract: This device for displaying time periods comprises a display element (A), an indicator component (1), a drive component (3) for driving the indicator component (1), an instantaneous-jump cam (6) engaged with the drive component (3), a drive mobile (5) for driving the cam (6) and correction means (4) for coming into direct engagement with the indicator component (1). A one-way connection device (3b, 11, 12) connects the drive mobile (5) to the cam (6). The drive component (3) is engaged with the cam (6) by elastic return means (3d) and guidance means (3b) defining a degree of freedom of the drive component (3) in order to allow the indicator component (1) to move the drive component (3) against the elastic return means (3d) when the latter occupies a position interfering with the movement of the indicator component (1) by the correction means (4).

Abstract: A high-speed rotating wheel rotates at high speed by a third stepper motor which meshes with a portion of teeth of a ratchet wheel. A transmission projection of the ratchet wheel moves within an elongated hole of a transmission wheel which rotates with the movement of the hour hand. The ratchet wheel rotates at high speed, and a display wheel rotates at high speed by the high speed rotation of the ratchet wheel via a feed wheel. When normally moving the hour hand, the ratchet wheel rotates with the transmitting wheel and the portion of teeth of the ratchet wheel is made to approach the high-speed rotating wheel. When the display of the display wheel changes, the high-speed rotating wheel meshes with the portion of teeth of the ratchet wheel and rotates the ratchet wheel at high-speed. Accordingly, the date display of the display wheel can be quickly changed.

Abstract: A retrograde display mechanism of a timepiece includes a retrograde display mechanism main body having a time value driving wheel that rotates once every day and that has a time value finger which advances a time value including a date or a day. A time value transmitting wheel has a time value transmitting wheel tooth portion and a drive cam portion which are rotated by one tooth every day by the time value finger. A fan-shaped wheel operating lever has a cam follower portion and a fan-shaped wheel operating tooth portion engaged with the drive cam portion, and a fan-shaped wheel and a fan-shaped wheel display portion which mesh with the fan-shaped wheel operating tooth portion to rotate in response to rocking of the operating lever. The fan-shaped wheel rapidly rotates reversely to return to an initial position whenever the end of the month or the end of the week passes.

Abstract: Date mechanism for a timepiece including a movement which daily pivots a lever, comprising a perpetual twelve cam with sectors whose depth depends on the duration of the successive months, completing one revolution per year. The mechanism has a single click and includes a single click finger, hinged to said lever and arranged to cooperate with a thirty-one ratchet wheel which pivots integrally with a first thirty-one snail cam arranged to control a date display means, and a second cam including a radial finger; a countdown mechanism whose position is determined by said second cam, adjusting the number of teeth of said wheel to be activated by said click finger according to the current day and current month; and a means of driving said cam.

Abstract: Timepiece movement (1) driving at least one output wheel set (3), from a means (2A) of generating a time magnitude, or a means (2B) of detecting the magnitude of the state of a control member of this movement, or a means (2C) of measuring a physical magnitude, the position of this output wheel set (3) being linked to an instantaneous value of this magnitude, displayed on a swivelling display base (10) and including a display wheel set (4) cooperating with this output wheel set (3). This display wheel set (4) is permanently coupled to this output wheel set (3) and this movement (1) includes a supplementary wheel set (5) pivoting synchronously or in an integer pivoting velocity ratio relative to supplementary wheel set (5). Timepiece (100) including a movement (1) of this type.

Abstract: A backlash-compensating mechanism includes a cam, an actuating member bearing against the cam and a wheel coaxial to the cam and intended to be driven by a gear train of the movement. The cam and the wheel are connected to each other such that one revolution of the wheel includes a sequence of a first phase in which the wheel drives the cam whilst the co-operation between the cam and the actuating member cocks the latter, a second phase in which the actuating member uncocks and causes the cam to effect an instantaneous jump, and a third phase in which the cam is immobilized and the wheel continues to advance until it catches up with the cam to once again drive it during the first phase of the following revolution. This mechanism includes a resilient element acting between the cam and the wheel and applying a return torque to the wheel during the third phase to compensate the backlash in the gear train.

Abstract: Devices, systems, and methods for presenting date and time information are described. In some embodiments, a date and/or a time value is presented as a base-36 number. In some embodiments, an integral portion of the base-36 number represents a date value, and a fractional portion of the base-36 number represents a time value. Each base-36 digit may be represented by one of the numerals 0-9 and the letters A-Z. Both digital and analog clocks and a clock application displaying date and/or time information in which a day is broken into thirty-six increments are disclosed. A clock application displaying coordinates of a location based on a base-36 geo-positioning system is disclosed.

Abstract: A timepiece includes a case that is made from a conductive material; a movement that is housed in the case and has a plurality of motors that drive plural staffs disposed at a plurality of locations; a dial that is made from a nonconductive material; and an antenna that is disposed inside the case. At least two display units including a first display unit and a second display unit are formed as plane circles on the surface of the dial with a staff in the plane center of each plane circle. The diameter of the first display unit is greater than the diameter of the second display unit, and the antenna is disposed to a position superimposed in plan view on the first display unit and the second display unit.

Abstract: A method and system for providing an aggregate view of information that a user may need is provided. A desktop assistant system collects information items that a user may need such as scheduling information and recently received messages. The desktop assistant system may also identify documents that the user may need and contacts with whom the user may need to communicate based on analysis of the collected scheduling information and the collected messages. The desktop assistant system then displays indications of the collected scheduling information, the collected messages, the identified documents, and the identified contacts so that the user has an integrated view of the needed information items.

Abstract: An information display device of the present invention includes an hour plate having an opening, a rotor which is rotatably placed below the hour plate and has a display section which is partially exposed corresponding to the opening of the hour plate, and a braking member which gives a load to the rotor when the rotation of the rotor is stopped, and reduces the load on the rotor when the rotor is rotating.

Abstract: A control system is disclosed for use with a machine having a work tool and operating at a work site. The control system may have a sensor associated with the work tool and configured to generate a signal indicative of a position of the work tool, an offboard worksite controller, and an onboard controller in communication with the sensor and the offboard worksite controller. The onboard controller may be configured to receive from an operator an input indicative of a current task being performed by the machine, and track movement of a portion of the work tool corresponding with the operator input. The onboard controller may also be configured to communicate the tracked movement to the offboard worksite controller.

Abstract: A patient-portable medication event monitor is disclosed which is capable of detecting the dispensing of doses of a particular medication from the monitor, comparing the dispensing detected with information concerning the desired dosing regimen for the certain medication and displaying graphically to the patient at least one feedback indication of the patient's degree of compliance or deviation with the desired regimen.

Abstract: A timepiece includes a case that is made at least in part from a conductive material; a dial that is made from a nonconductive material; a solar panel that has an opening and is disposed at a side opposite a display side of the dial, and that receives light incident from the display side of the dial; a patch antenna that is disposed at a side opposite of a light receiving side of the solar panel, and at a position overlapping the opening in plan view; and a date wheel made from nonconductive material that is disposed between the solar panel and the patch antenna in lateral view, and is disposed at a position overlapping, at least in part, the patch antenna in plan view. The dial has a date window, formed at a position overlapping the opening in plan view, for exposing at least part of the date wheel.

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 calendar display device for a mechanical watch piece including a first disk, the disk of days, carrying multiple series of inscriptions symbolizing the seven days of the week, a second disk, the disk of dates, carrying inscriptions symbolizing the date of the month, a third disk, the disk of months, carrying 12 inscriptions symbolizing the months of the year. One of the disk of days and the disk of dates acts as a dial by being fixed, whereas the other acts as a rotary disk by being arranged concentrically and rotatably in relation to the dial. The dial includes an aperture making it possible to see the inscription of the current month on the disk of months. A hand indicates simultaneously the date and the day of the week. The device includes a correction mechanism cooperating at least with a gear train bidirectionally driving the disk of months.