CH667965GA3 - - Google Patents
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- Publication number
- CH667965GA3 CH667965GA3 CH109887A CH109887A CH667965GA3 CH 667965G A3 CH667965G A3 CH 667965GA3 CH 109887 A CH109887 A CH 109887A CH 109887 A CH109887 A CH 109887A CH 667965G A3 CH667965G A3 CH 667965GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- month
- motor
- graduation
- index
- signal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C17/00—Indicating the time optically by electric means
- G04C17/005—Indicating the time optically by electric means by discs
- G04C17/0058—Indicating the time optically by electric means by discs with date indication
- G04C17/0066—Indicating the time optically by electric means by discs with date indication electromagnetically driven, e.g. intermittently
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C17/00—Indicating the time optically by electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromechanical Clocks (AREA)
- Electrically Operated Instructional Devices (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Electric Clocks (AREA)
- Calculators And Similar Devices (AREA)
Abstract
The watch includes a time-keeping circuit, a first motor, hands driven by the motor to display the time, an index that moves forward by 1/35th of a revolution per 24 hours, a stationary graduation having inscribed thereon 35 days of 5 consecutive weeks, a mobile graduation divided into 35 parts and bearing numbers 1 to 31 for the ordinals of the month, a second motor that drives the mobile graduation in steps of 1/35th of a revolution, a calendar circuit issuing a signal that is representative of the month and a signal that is representative of the year, and a correction circuit connected to the calendar circuit and issuing a control signal to the second motor. At the end of each month, the mobile graduation is moved by the second motor through N steps (N=4,5,6 or 7) such that number 1 thereon comes to lie opposite the index at the beginning of the following month. The two graduations provide the correspondence between the days of the week and the ordinals of the month for the current month whereas the index indicates the actual day of the week and ordinal of the month.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH109887A CH667965GA3 (en) | 1987-03-23 | 1987-03-23 | |
| US07/168,779 US4815051A (en) | 1987-03-23 | 1988-03-16 | Analog electronic watch that indicates the day of the week and the ordinal of the month |
| EP88104324A EP0285881B1 (en) | 1987-03-23 | 1988-03-18 | Electronic analogous watch indicating the day and the date |
| DE8888104324T DE3861693D1 (en) | 1987-03-23 | 1988-03-18 | ELECTRONIC ANALOG CLOCK WITH SPECIFICATION OF THE DAY AND DATE. |
| JP63-67467A JPH01489A (en) | 1987-03-23 | 1988-03-23 | analog electronic clock |
| SG3094A SG3094G (en) | 1987-03-23 | 1994-01-10 | Electronic analogous watch indicating the day and the date |
| HK61094A HK61094A (en) | 1987-03-23 | 1994-06-30 | Electronic analogous watch indicating the day and the date |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH109887A CH667965GA3 (en) | 1987-03-23 | 1987-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH667965GA3 true CH667965GA3 (en) | 1988-11-30 |
Family
ID=4202432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH109887A CH667965GA3 (en) | 1987-03-23 | 1987-03-23 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4815051A (en) |
| EP (1) | EP0285881B1 (en) |
| CH (1) | CH667965GA3 (en) |
| DE (1) | DE3861693D1 (en) |
| HK (1) | HK61094A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH688362B5 (en) * | 1995-03-28 | 1998-02-27 | Ebauchesfabrik Eta Ag | The analog electronic timepiece multifunctional date disc. |
| US5893044A (en) * | 1997-01-21 | 1999-04-06 | Motorola Inc. | Real time clock apparatus for fast acquisition or GPS signals |
| EP1134629A3 (en) * | 2000-02-29 | 2005-02-09 | Fernand Moser | Time indicating means |
| EP1174844A3 (en) * | 2000-07-07 | 2006-06-28 | Wolfgang Müller | Electronically controlled calendar with hand display |
| EP1351105B1 (en) | 2002-04-02 | 2008-12-03 | Manufacture et fabrique de montres et chronomètres Ulysse Nardin Le Locle SA | Timepiece with perpetual calender display |
| CH704043A1 (en) * | 2010-11-02 | 2012-05-15 | Piguet & Co Horlogerie | Calendar display device for mechanical wrist watch, has direct kinematic link between disk of months and disk of days or dates for automatic indexing between inscriptions on disk of days or dates and inscriptions on dial depending on month |
| EP2447789B1 (en) * | 2010-11-02 | 2013-08-07 | Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie | Calendar display device and calendar watch |
| EP2469357B2 (en) * | 2010-12-21 | 2016-06-29 | The Swatch Group Research and Development Ltd. | Shock-absorbing bearing for a rotating mobile of a clock movement |
| USD762490S1 (en) * | 2015-03-17 | 2016-08-02 | Citizen Holdings Co., Ltd. | Wrist watch |
| USD762491S1 (en) * | 2015-03-17 | 2016-08-02 | Citizen Holdings Co., Ltd. | Wrist watch |
| CH717502B1 (en) * | 2020-06-08 | 2023-05-15 | Richemont Int Sa | Calendar system for a timepiece. |
| EP3926415A1 (en) * | 2020-06-18 | 2021-12-22 | ETA SA Manufacture Horlogère Suisse | Device for update and related method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH332899A (en) * | 1958-03-17 | 1958-09-30 | Gisiger Lusa Armin | Calendar watch |
| US3452535A (en) * | 1966-04-13 | 1969-07-01 | Ind De Metrologie Trophy Cie | Dating mechanism |
| FR2085753A1 (en) * | 1970-04-01 | 1971-12-31 | Otero Uhrenrohwerke | |
| GB1590467A (en) * | 1976-12-03 | 1981-06-03 | Citizen Watch Co Ltd | Electronic timepiece |
| GB1602034A (en) * | 1977-06-03 | 1981-11-04 | Citizen Watch Co Ltd | Calendar timepiece |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US249536A (en) * | 1881-04-15 | 1881-11-15 | Calendar-clock | |
| US422090A (en) * | 1889-02-19 | 1890-02-25 | miller | |
| CH322899A (en) * | 1955-05-12 | 1957-07-15 | Correvon Alfred | Device intended for the production of heavy fumes and their introduction into a bee hive |
-
1987
- 1987-03-23 CH CH109887A patent/CH667965GA3/fr not_active IP Right Cessation
-
1988
- 1988-03-16 US US07/168,779 patent/US4815051A/en not_active Expired - Lifetime
- 1988-03-18 DE DE8888104324T patent/DE3861693D1/en not_active Expired - Lifetime
- 1988-03-18 EP EP88104324A patent/EP0285881B1/en not_active Expired - Lifetime
-
1994
- 1994-06-30 HK HK61094A patent/HK61094A/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH332899A (en) * | 1958-03-17 | 1958-09-30 | Gisiger Lusa Armin | Calendar watch |
| US3452535A (en) * | 1966-04-13 | 1969-07-01 | Ind De Metrologie Trophy Cie | Dating mechanism |
| FR2085753A1 (en) * | 1970-04-01 | 1971-12-31 | Otero Uhrenrohwerke | |
| GB1590467A (en) * | 1976-12-03 | 1981-06-03 | Citizen Watch Co Ltd | Electronic timepiece |
| GB1602034A (en) * | 1977-06-03 | 1981-11-04 | Citizen Watch Co Ltd | Calendar timepiece |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0285881B1 (en) | 1991-01-30 |
| HK61094A (en) | 1994-07-01 |
| US4815051A (en) | 1989-03-21 |
| JPS64489A (en) | 1989-01-05 |
| JPH0514238B2 (en) | 1993-02-24 |
| EP0285881A1 (en) | 1988-10-12 |
| DE3861693D1 (en) | 1991-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |