JPS5072668A - - Google Patents
Info
- Publication number
- JPS5072668A JPS5072668A JP49091139A JP9113974A JPS5072668A JP S5072668 A JPS5072668 A JP S5072668A JP 49091139 A JP49091139 A JP 49091139A JP 9113974 A JP9113974 A JP 9113974A JP S5072668 A JPS5072668 A JP S5072668A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- 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
- G04B19/20—Indicating by numbered bands, drums, discs, or sheets
- G04B19/202—Indicating by numbered bands, drums, discs, or sheets by means of turning discs
-
- 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
- G04B13/00—Gearwork
- G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement
-
- 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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
- G04B19/25386—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement manually corrected at the end of months having less than 31 days
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1145073A CH567749B5 (en) | 1973-08-08 | 1973-08-08 | |
| CH995174A CH599583B5 (en) | 1974-07-19 | 1974-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5072668A true JPS5072668A (en) | 1975-06-16 |
Family
ID=25705583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49091139A Pending JPS5072668A (en) | 1973-08-08 | 1974-08-08 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3875739A (en) |
| JP (1) | JPS5072668A (en) |
| DE (1) | DE2438390A1 (en) |
| FR (1) | FR2245993B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53110559A (en) * | 1977-03-08 | 1978-09-27 | Citizen Watch Co Ltd | Electronic watch |
| SU794596A1 (en) * | 1978-06-23 | 1981-01-07 | Научно-Исследовательскийинститут Часовой Промышленности | Instant-action calendar device |
| CH682285B5 (en) * | 1991-12-20 | 1994-02-28 | Ebauchesfabrik Eta Ag | Timepiece of the mechanical or electromechanical type comprising a drive wheel driving at least a display device such as a display of dates. |
| JP3539857B2 (en) * | 1997-12-25 | 2004-07-07 | セイコーインスツルメンツ株式会社 | Intermittent feed mechanism |
| EP3101486B1 (en) * | 2015-06-02 | 2018-10-03 | ETA SA Manufacture Horlogère Suisse | Heart of timepiece or chronograph |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH550425A (en) * | 1966-01-11 | 1974-06-14 | ||
| CH458216A (en) * | 1966-02-22 | 1968-08-15 | Ebauches Sa | "Surprise" mechanism for a timepiece |
| CH525507A (en) * | 1969-11-03 | 1971-08-13 | Tissot Horlogerie | Drive mechanism for a date indicator in a timepiece |
| US3673789A (en) * | 1970-06-13 | 1972-07-04 | Citizen Watch Co Ltd | Calendar timepiece with month advancement mechanism for 29,30,or 31 day months |
| CH535447A (en) * | 1970-08-19 | 1972-12-15 | Schild Sa A | Watch movement with date and day of the week |
-
1974
- 1974-08-01 US US493982A patent/US3875739A/en not_active Expired - Lifetime
- 1974-08-07 DE DE2438390A patent/DE2438390A1/en not_active Withdrawn
- 1974-08-07 FR FR7428131A patent/FR2245993B1/fr not_active Expired
- 1974-08-08 JP JP49091139A patent/JPS5072668A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3875739A (en) | 1975-04-08 |
| DE2438390A1 (en) | 1975-02-20 |
| FR2245993B1 (en) | 1979-07-06 |
| FR2245993A1 (en) | 1975-04-25 |