EP1637942A1 - Kalenderuhr mit Zeitgleichungsvorrichtung - Google Patents

Kalenderuhr mit Zeitgleichungsvorrichtung Download PDF

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Publication number
EP1637942A1
EP1637942A1 EP04021904A EP04021904A EP1637942A1 EP 1637942 A1 EP1637942 A1 EP 1637942A1 EP 04021904 A EP04021904 A EP 04021904A EP 04021904 A EP04021904 A EP 04021904A EP 1637942 A1 EP1637942 A1 EP 1637942A1
Authority
EP
European Patent Office
Prior art keywords
time
wheel
true
timepiece according
longitude
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04021904A
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English (en)
French (fr)
Inventor
Marco Rochat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Frederic Piguet SA
Original Assignee
Frederic Piguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frederic Piguet SA filed Critical Frederic Piguet SA
Priority to EP04021904A priority Critical patent/EP1637942A1/de
Priority to AT05784183T priority patent/ATE396432T1/de
Priority to EP05784183A priority patent/EP1792236B1/de
Priority to PCT/EP2005/009425 priority patent/WO2006029722A2/fr
Priority to DE602005007044T priority patent/DE602005007044D1/de
Publication of EP1637942A1 publication Critical patent/EP1637942A1/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • G04B19/235—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands mechanisms for correcting the additional hand or hands

Definitions

  • the present invention relates to a timepiece comprising a time equation mechanism with display. More particularly, the invention is directed to a walking time equation mechanism operating a true time minute hand that indicates the gap between true solar time and civil time.
  • certain timepieces include a mechanism said to equation of walking time, that is to say whose switch has two minute hands, one indicating the civil time and the other the true time, the minute hand of the true time being actuated by a weather equation cam whose profile is determined by the difference between the mean solar time and the true time at a given instant .
  • the cam is rotated at the rate of one revolution per year by a simple or perpetual calendar mechanism.
  • the simple date is a mechanism that can indicate the day of the week, the day of the month, the month of the year or the phases of the moon, but which does not take into account the variation of the number of days in the months (months of 28, 29 or 30 days).
  • the user of a watch comprising a simple date mechanism will have to make a manual correction every month ends that are less than 31 days. For example, February 28 or April 30 will require manual correction.
  • the perpetual calendar it allows, as a simple date mechanism, to indicate the day, the date, the month and the moon phases. But, unlike the simple calendar mechanism, the perpetual calendar mechanism automatically takes into account the length of the months (28, 29 or 30 days), and this without manual intervention. A perpetual calendar mechanism therefore automatically takes into account leap years.
  • Longitudes are counted from the Greenwich meridian from 0 to 180 ° eastward (E).
  • E Greenwich meridian
  • the longitude of Bienne (Switzerland) is 007E15 (7 degrees and 15 minutes east longitude) and that of Athens is 023E44 (23 degrees and 44 minutes east longitude)), and from 0 to 180 ° in the direction of from the west (W) (for example, the longitude of Portugal is 009W08 and that of Rio de Janeiro is 043W14) (see Figure 2B).
  • a time zone thus extends between -7.5 ° and + 7.5 ° longitude.
  • the sun does not go to the zenith at the same time, depending on where you are.
  • the sun will be at the zenith earlier in Paris than in London, although these two cities belong to the same time zone.
  • the object of the present invention is to remedy this drawback as well as to others by providing a date timepiece comprising a walking time equation device which makes it possible to display the minute of the true time as a function of time. the longitude of where you are.
  • the present invention relates to a timepiece comprising a watch movement and a date mechanism, this timepiece having a pair of hour and minute hands which indicate the calendar time, and an extra minute hand which indicates the true minute and which is driven by a true time display gear, the daily position of the minute hand of the true time being determined by the position of a time equation cam rotated at a rate of one revolution per year from the date mechanism, characterized in that it comprises a longitude correction mechanism which can drive forward or backward a maximum value of +/- - 30 min the minute hand of true time by momentarily decoupling it from the watch movement.
  • the present invention will be described in connection with a timepiece of the wristwatch type comprising a walking time equation mechanism actuated by an equation cam, itself driven in rotation at the rate of one revolution per year to from a date mechanism that can be indifferently simple or perpetual.
  • a timepiece of the wristwatch type comprising a walking time equation mechanism actuated by an equation cam, itself driven in rotation at the rate of one revolution per year to from a date mechanism that can be indifferently simple or perpetual.
  • the hour and minute hands of the real time can be reset by the user himself at the end of the months of the year with less than 31 days since the determination of the difference between the two hands of the minutes of the civil time and the true time is defined by the equation cam of the time driven by the date mechanism.
  • the time equation cam is automatically placed in its exact position for the given day.
  • the timepiece according to the invention comprises in particular a dial whose plan view is shown in Figure 3.
  • the dial provides the wearer of the watch with different information. He first indicates, in a first small dial 2, the month of the year. We see in Figure 3 that the indication of the month of the year is by a needle 4.
  • the needle 4 could be replaced by a record that would bear the inscription of the months of the year and which would turn under the dial 1 leaving the name of the month by an opening in said dial 1 and called wicket.
  • a second hand 6 moving over another small dial 8 indicates the date (1 to 31) or date.
  • the timepiece comprises, in addition to a conventional switch whose role is to indicate the civil time and which comprises a 10-hour hand and a minute hand 12, a second hand. referral, concentric to the civil time switch, and which includes a second hour hand 14 and a second minute hand 16 which indicate the true time.
  • a conventional switch whose role is to indicate the civil time and which comprises a 10-hour hand and a minute hand 12, a second hand.
  • referral concentric to the civil time switch, and which includes a second hour hand 14 and a second minute hand 16 which indicate the true time.
  • the latter can end, for example, by a representation of the astrological symbol of the sun 18.
  • the exact position of the hands 14, 16 of the true time for a given day is determined every day (once every 24 hours) around midnight, then the needles 10, 12 of the civil time and needles 14, 16 of true time move together, the gap between the hours of needles 10 and 14 and minutes 12, 16 remaining constant for the given day.
  • the watch according to the present invention also provides an indication of the difference between the civil time of the place where one is and the civil time in the center of the time zone to which one belongs by means of a needle 20 moving in relation to a time scale 22.
  • This time scale 22 is graduated hourly and extends between -4 and +4 hours, which corresponds to the maximum time difference that can be note between the civil time of a given place on the earth and the civil time in the center of the reference time zone to which this place belongs. The user thus instantly knows the value of the offset applied to the calendar time displayed by the watch relative to the civil time in the center of the spindle.
  • Our globe is divided into 24 time zones of 60 minutes each, each time zone corresponding to 15 ° of longitude (see Figure 4A).
  • the meridian of Greenwich, passing through London, is located in the middle of a time zone and carries the longitude 000.
  • the longitudes are counted from the meridian of Greenwich from 0 to 180 ° in easterly direction (E) (for example, the longitude of B Jardin (Switzerland) is 007E15 (7 degrees and 15 minutes east longitude) and that of Athens is 023E44 (23 degrees and 44 minutes east longitude) ), and from 0 to 180 ° in a westerly direction (W) (for example, the longitude of Portugal is 009W08 and that of Rio de Janeiro is 043W14) (see Figure 4B).
  • E easterly direction
  • W westerly direction
  • the watch includes a dial 24 graduated between -7.5 ° and + 7.5 ° above which moves a needle 26 adapted to rotate in both directions.
  • the user can apply an offset of +/- 7.5 ° of longitude, a temporal offset of +/- 30 min at the time. true.
  • the user before applying this offset, the user must specify whether he is standing in longitude West (W) or East (E). For this, it has an additional dial 28 above which moves a needle 30 which points either west (W) or east (E).
  • the transition from the west longitudes system (W) to the longitudes system is (E) can only be done when the longitude management mechanism is at zero, in other words when the pointer 26 points to the zero of the dial 24.
  • a displacement in the direction of longitudes is (E) corresponds to a reverse displacement in the direction of longitudes west (W).
  • E a displacement in the direction of longitudes
  • W a reverse displacement in the direction of longitudes west
  • the dial illustrated in FIG. 4 differs from that shown in FIG. 3 in that the display of true time is eccentric.
  • the hours 14 and 16 minutes of the true time move over a dial 32 which may have a shape corresponding to the astrological representation of the sun to allow the user to immediately make the difference between the display of the civil time and the display of the true time.
  • the movement of the watch (not shown) drives a wheel 34 mounted on a roadway 36 at the free end of which is fixed the minute hand 12 of the civil time.
  • the pavement transmits the basic time information to a wheel hours 38 and a wheel of civil hours 40 via a mobile timer 42 comprising a wheel 44 and a pinion 46 which achieve a reduction of 1 / 12.
  • the calendar hour wheel 40 is fixed on a barrel 48 which carries, at its free end, the hour hand of the civil time.
  • the hour wheel 38 carries a jumper spring 50 which drives a star with twelve teeth 52 in steps of 1/12 (see FIG. 6).
  • the star 52 is driven on an intermediate wheel 54 which itself carries a jumper spring 56 which drives in steps of 1/12 a star with twelve teeth 58 driven on the barrel 48.
  • the operation of this mechanism will be described below .
  • the minute hand 16 of the true time is driven by a true time display gear comprising in particular a differential mechanism 60 which has for respective entries the roadway 36 on the one hand, and a rake 62 which cooperates with a cam equation of time 64 (see Figure 7).
  • the differential mechanism 60 comprises a planet wheel 66 which is driven by the roadway 36 and which carries one and, preferably, two planet gears 68. These two satellites 68 are able to turn on themselves and to roll on an internal toothing 70 of an equation wheel of the time 72. The latter also has on its outer periphery a toothing 74 by which it cooperates with the rake 62 and the equation cam of time 64.
  • the differential mechanism 60 finally includes in its center an output mobile 76 formed of a pinion 78 carried by an axis 80 and which meshes with the planet gears 68.
  • a wheel 82 is driven on the pinion 78 and meshes with an equation pavement 84 mounted freely on a canon 86 minutes of the true time which carries at its free end the needle 16 minutes of the true time.
  • the equation pavement 84 drives in rotation, through a friction coupling 88, an additional roadway 90 fixed on the barrel 86 of the minutes of the true time and which constitutes one of the inputs of a second differential mechanism.
  • This additional roadway 90 carries one and, preferably, two planet gears 94 which are able to turn on themselves and to roll on an internal toothing 96 of a longitude management wheel 98.
  • This wheel for managing the longitude 98 also has on its outer periphery a toothing 100 by which it cooperates with a longitude correction mechanism 102 which will be described in detail below.
  • the differential mechanism 92 finally comprises at its center an output pinion 104 integral with the barrel 86 of the minutes of the true time and which meshes with the planet gears 94.
  • the structure and operation of this second differential mechanism 92 are similar to those of the differential mechanism 60 described above. Therefore, for more details, one can also refer to the European patent application in the name of the Applicant mentioned above.
  • An additional equation pavement 106 is attached to the barrel 86 of the minutes of true time.
  • This pavement 106 transmits the true time information to a mobile carrying the true hours hand 14 via a timer wheel 112 comprising a wheel 114 and a pinion 116 which achieve a reduction of 1/12. .
  • the mobile carrying the true hours hand 14 comprises an equation board 108 and a real hours wheel 110.
  • the real hours wheel 110 is fixed on a gun 118 of the hours of the true time which carries the real hours hand 14 at its free end.
  • the wheel of the true hours 110 carries on the other hand a spring jumper 120 which drives in steps of 1/12 a star with twelve teeth 122 driven on the barrel 118.
  • the wearer of the watch is in the center of a time zone, for example on the meridian of Greenwich. In this case, no correction is to be made, both from the point of view of the shift of the civil time and the management of the longitude.
  • the movement of the watch thus causes the wheel 34 mounted on the roadway 36 to provide an indication of the minute of the base time, ie the civil time in the center of the spindle.
  • the roadway 36 transmits, via the timer wheel 42 and the hour wheel 38, the basic time information to the calendar hour wheel 40 to provide an indication of the time of the civil time.
  • the movement of the watch causes the differential mechanism 60 to provide an indication of the minute of the true time or solar time.
  • the time equation cam 64 and the rake 62 are stationary.
  • the planet gears 68 are driven by the roadway 36, that is to say by the clockwork movement of the watch.
  • the pinions 68 therefore turn on themselves and roll on the internal toothing 70 of the equation wheel of the time 72, driving the output pinion 78 and the wheel 82 in rotation.
  • the equation pavement 84 in turn rotates, driving the additional roadway 90 via the friction clutch 88, allowing the minute hand of the true time 16 to rotate concomitantly with the minute hand of the time.
  • the gap between the needle 16 of the minutes of true time and the hand 12 of the minutes of the civil time therefore remains constant over a period of 24 hours.
  • the equation cam of time 64 pivots, driven by a calendar 124 which changes the calendar from one day to the next.
  • the rake 62 pivots in turn, driving the equation wheel 72 in rotation.
  • the planet gears 68 being, during this brief time interval, substantially immobile (they make a complete revolution in one hour), they rotate on themselves being driven in rotation by the equation wheel of time 72, and lead to turn the output pinion 78 so as to again adjust exactly the position of the minutes hand of the true time 16.
  • the true time information is transmitted to the true hours wheel 110 by the additional equation pavement 106 via the timer mobile 112.
  • the user is no longer on the Greenwich meridian but in Switzerland, where the civil time is one hour ahead of Greenwich in winter, and two hours in summer.
  • the user will have to shift the calendar time indicated by his watch of one hour (or two hours in summer) compared to the base time which is the civil time in the center of the time zone.
  • the user has a correction pinion 126 which can be rotated in both directions and which drives the wheel of the civil hours 40 forwards or backwards in steps of 1/12.
  • the wheel of civil hours 40 is driven on the barrel of civil hours 48 which is itself associated with the star with twelve teeth 58 indexed in position by the jumper spring 56.
  • This spring 56 has the general shape of a C and is provided at its two ends with a spout 128 which engages in a recess between two successive teeth of the star 58.
  • the corrector pinion 126 is driven the wheel of the civil hours 40 and hence the star 58 which advances in successive jumps of a twelfth of a turn each time. It is therefore possible to correct the calendar time displayed by the watch to account for the difference between the civil time of the place where one is and the base time in the center of the spindle without changing the true solar time.
  • Geneva Geneva
  • Geneva In addition to the time difference in Switzerland from the base time in the center of the Greenwich time zone, the difference in longitude between Geneva and Greenwich must also be taken into account. In this case, Geneva is located at 6 ° and 10 minutes east longitude compared to Greenwich, which means that the sun is 25 minutes ahead of Geneva time.
  • the watch On 23 December, when the difference between true solar time and civil time is zero and the Geneva time is one hour ahead of the Greenwich hour (winter time), the watch will indicate 12h 35min in Geneva during the passage of the sun to its zenith.
  • the user has a device for defining the longitude 130 which enables him to to indicate if it is in the system of longitudes is (E) or west (W).
  • the transition from the longitudes system is (E) to the west longitudes system (W) and conversely causes a change in the direction of rotation of the 16 minutes hand of true time as described below.
  • a displacement in the direction of longitudes is (E) corresponds to a reverse displacement in the direction of longitudes west (W).
  • the longitude defining device 130 comprises control means (not shown) by means of a pusher (column wheel and shuttle) or by a rod with two stable pulled positions. These control means act on an inverter which, according to a preferred embodiment of the invention, comprises a flip-flop 131 (see FIGS. 8A and 8B) able to pass alternately from a first stable position in which it indicates the system of longitudes. is (E) at a second stable position in which it indicates the west longitudes system (W).
  • This rocker is pivotally mounted about an axis 132 of a return wheel 133 and carries a second return 134 as well as a wheel 136 which are in permanent engagement.
  • the flip-flop 131 carries the needle 30.
  • the flip-flop 131 has two indicator elements 135 such as red-colored pellets which are intended to appear through two corresponding windows in the dial of the watch and which indicate to the user. which of the two systems of longitude is (E) or west (W) he has selected.
  • the reference 133 meshes with the longitude management wheel 98 via the reference 134 and the wheels 136 and 138.
  • the wheel 138 is limited in its rotation. by a pin 140 so that the needle 26 can rotate more than 180 ° clockwise or counterclockwise.
  • the user By rotating the reference 133 in the counterclockwise direction, the user causes a rotation in the same direction of the wheel 98 for managing the longitude, this rotation being limited to a maximum of 180 ° by the wheel 138.
  • the wheel 136 In the second Stable position of the latch shown in Figure 8B, the wheel 136 is decoupled from the wheel 138, so that the reference 133 meshes with the wheel 98 for managing the longitude via the reference 134 and the wheel 138 only.
  • the reference 133 counter-clockwise the user causes a rotation in the opposite direction of the wheel 98 for managing the longitude, this rotation being limited to a maximum of 180 ° by the wheel 138.
  • the reference 133 By turning the reference 133 always in the same direction, the user can rotate , forwards or backwards, the minute hand 16 of the true time according to whether it is in the system of longitudes is (E) or west (W).
  • the user can, by means of the longitude defining device 130, move the needle 30 so as to point it to the east (E), then display an offset of + 6 ° in longitude by means of the needle 26.
  • This needle 26 is carried by the wheel 138 which is driven, forwards or backwards, by a maximum value of +/- 30min corresponding to a variation of +/- 7.5 ° in longitude with respect to the center of the spindle (see Figure 9).
  • the wheel 138 is limited in its rotation by a pin 140 so that the needle 26 can not rotate more than 180 ° clockwise or counter-clockwise.
  • This wheel 138 meshes with the external toothing 100 of the longitude management wheel 98 which, by rotating, rotates the planet gears 94. The latter in turn drive the output pinion 104 integral with the barrel 86 of the minutes of true time.
  • the barrel 86 of the minutes of the true time rotates the additional roadway 90 which, by means of the friction coupling 88, slides on the equation pavement 84, which allows the momentary deindexing of the minute of the true time.
  • Each degree of displacement of the needle 26 which indicates the offset in longitude relative to the center of the spindle corresponds to four minutes of displacement of the needle 16 minutes of the true time.
  • the intermediate wheel 54 has a correction pinion 142 which simultaneously rotates in one hour increments the intermediate wheel 54 and the wheel of the true hours 110.
  • the star On the intermediate wheel 54 is driven the star with twelve teeth 52 whose position is indexed by the jumper spring 50 which is of the same type as the jumper spring 56 describes above.
  • the corrector pinion 142 By acting on the corrector pinion 142, the intermediate wheel 54 and thereby the star 52 are driven which advance in successive jumps of one twelfth of a turn each time.
  • the intermediate wheel 54 drives the star 58 driven on the barrel 48 of the civil hours via the spring 56.
  • the display of the civil time is corrected for the number of hours corresponding to the time difference between the place where the user and the reference time zone.
  • the true hour wheel 110 also advances in successive jumps of a twelfth of a revolution, its movement being indexed by the jumper spring 120 which is engaged with the star 122 driven on the barrel 118 of the hours of the true time.
  • the hour hand of the civil time and the hour hand of the true time therefore move concomitantly without the minute of the true time being changed.
  • the user is at 25 ° east longitude (E).
  • the multiple of 15 closest to 25 is 30 so the user will have to display -5 ° by means of the needle 26 of the longitude management mechanism.
  • the multiple of 15 closest to 32 being 30, the user will have to display a + 2 ° difference on the longitude management mechanism.
  • the date mechanism simple or perpetual, can be of any known type and will not be described in its entirety. It is sufficient, in fact, for a good understanding of the invention, to know that this date mechanism results in the time equation cam 64 at a rate of one complete revolution per year. However, it is shown for illustrative purposes only (see Figure 10), a date mobile 144 driving the needle 6 indicating the date (1 to 31). This date mobile 144 rotates at a rate of one complete turn per month. It is actuated by the date mechanism via an intermediate date wheel 146 for reversing the direction of rotation, and a reduction wheel 148 which makes it possible to reduce the speed of rotation of a complete revolution per month to one revolution complete per year.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP04021904A 2004-09-15 2004-09-15 Kalenderuhr mit Zeitgleichungsvorrichtung Withdrawn EP1637942A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP04021904A EP1637942A1 (de) 2004-09-15 2004-09-15 Kalenderuhr mit Zeitgleichungsvorrichtung
AT05784183T ATE396432T1 (de) 2004-09-15 2005-09-01 Uhr mit anzeige des monatstages mit einer vorrichtung für eine fortlaufende zeitgleichung
EP05784183A EP1792236B1 (de) 2004-09-15 2005-09-01 Uhr mit anzeige des monatstages mit einer vorrichtung für eine fortlaufende zeitgleichung
PCT/EP2005/009425 WO2006029722A2 (fr) 2004-09-15 2005-09-01 Piece d’horlogerie a quantieme comprenant un dispositif d’equation du temps marchante
DE602005007044T DE602005007044D1 (de) 2004-09-15 2005-09-01 Uhr mit anzeige des monatstages mit einer vorrichtung für eine fortlaufende zeitgleichung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04021904A EP1637942A1 (de) 2004-09-15 2004-09-15 Kalenderuhr mit Zeitgleichungsvorrichtung

Publications (1)

Publication Number Publication Date
EP1637942A1 true EP1637942A1 (de) 2006-03-22

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP04021904A Withdrawn EP1637942A1 (de) 2004-09-15 2004-09-15 Kalenderuhr mit Zeitgleichungsvorrichtung
EP05784183A Active EP1792236B1 (de) 2004-09-15 2005-09-01 Uhr mit anzeige des monatstages mit einer vorrichtung für eine fortlaufende zeitgleichung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05784183A Active EP1792236B1 (de) 2004-09-15 2005-09-01 Uhr mit anzeige des monatstages mit einer vorrichtung für eine fortlaufende zeitgleichung

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EP (2) EP1637942A1 (de)
AT (1) ATE396432T1 (de)
DE (1) DE602005007044D1 (de)
WO (1) WO2006029722A2 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7280437B2 (en) 2005-06-30 2007-10-09 Frédéric Piguet S.A. Timepiece with a calendar display
EP2187272A1 (de) 2008-11-12 2010-05-19 Noriah SA Anzeigevorrichtung für Uhr
EP3223085A1 (de) * 2016-03-23 2017-09-27 Officine Panerai AG Vorrichtung, die eine schnelleinstellfeder für uhrwerke umfasst
EP3252543A1 (de) * 2016-06-01 2017-12-06 CompliTime SA Anzeigevorrichtung für uhrwerk
EP3270236A1 (de) * 2016-07-15 2018-01-17 Montres Breguet S.A. Mechanismus der zeitgleichung, der durch eine differenzialvorrichtung gesteuert wird
EP3410231B1 (de) * 2017-05-29 2021-06-30 Montres Breguet S.A. Uhrwerksmechanismus

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3765162A (en) * 1971-02-05 1973-10-16 Suma Seikosha K K Watch indicating many times
US5184333A (en) * 1991-04-17 1993-02-02 Montres Breguet S.A. Clock movement
EP1286233A1 (de) * 2001-08-07 2003-02-26 Piguet, Frédéric S.A. Kalenderuhr mit Äquationsvorrichtung
EP1343056A1 (de) * 2002-03-08 2003-09-10 The British Masters SA Uhr mit Sonnenzeitanzeige

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Publication number Priority date Publication date Assignee Title
CH673747B5 (de) * 1988-11-15 1990-10-15 Longines Montres Comp D
DE4037750A1 (de) * 1990-11-28 1992-06-04 Scheidt Walter R Dipl Ing Fh Vorrichtung zur anzeige der dauer von tag und nacht unter beruecksichtigung der jahreszeit und der geografischen breite eines bezugsortes bei uhren
DE19754465C1 (de) * 1997-12-08 1998-12-10 Rudolf Fries Äquationsuhr mit zwei Zifferblättern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765162A (en) * 1971-02-05 1973-10-16 Suma Seikosha K K Watch indicating many times
US5184333A (en) * 1991-04-17 1993-02-02 Montres Breguet S.A. Clock movement
EP1286233A1 (de) * 2001-08-07 2003-02-26 Piguet, Frédéric S.A. Kalenderuhr mit Äquationsvorrichtung
EP1343056A1 (de) * 2002-03-08 2003-09-10 The British Masters SA Uhr mit Sonnenzeitanzeige

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7280437B2 (en) 2005-06-30 2007-10-09 Frédéric Piguet S.A. Timepiece with a calendar display
EP2187272A1 (de) 2008-11-12 2010-05-19 Noriah SA Anzeigevorrichtung für Uhr
EP3223085A1 (de) * 2016-03-23 2017-09-27 Officine Panerai AG Vorrichtung, die eine schnelleinstellfeder für uhrwerke umfasst
CH712289A1 (fr) * 2016-03-23 2017-09-29 Officine Panerai Ag Ressort de réglage rapide pour mouvement horloger.
EP3252543A1 (de) * 2016-06-01 2017-12-06 CompliTime SA Anzeigevorrichtung für uhrwerk
EP3270236A1 (de) * 2016-07-15 2018-01-17 Montres Breguet S.A. Mechanismus der zeitgleichung, der durch eine differenzialvorrichtung gesteuert wird
CN107621772A (zh) * 2016-07-15 2018-01-23 蒙特雷布勒盖股份有限公司 通过差动装置控制的时间运行等式机构
US10254714B2 (en) 2016-07-15 2019-04-09 Montres Breguet S.A. Running equation of time mechanism controlled by a differential device
CN107621772B (zh) * 2016-07-15 2020-04-07 蒙特雷布勒盖股份有限公司 通过差动装置控制的时间运行等式机构
EP3640747A1 (de) * 2016-07-15 2020-04-22 Montres Breguet S.A. Zeitgleichungsmechanismus, der durch eine differenzialvorrichtung gesteuert wird
US11281161B2 (en) 2016-07-15 2022-03-22 Montres Breguet S.A. Running equation of time mechanism controlled by a differential device
EP3410231B1 (de) * 2017-05-29 2021-06-30 Montres Breguet S.A. Uhrwerksmechanismus

Also Published As

Publication number Publication date
ATE396432T1 (de) 2008-06-15
DE602005007044D1 (de) 2008-07-03
WO2006029722A3 (fr) 2006-04-27
EP1792236B1 (de) 2008-05-21
EP1792236A2 (de) 2007-06-06
WO2006029722A2 (fr) 2006-03-23

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