IT1004259B - IMPROVEMENT IN ELECTRONIC MOVEMENTS FOR WATCHES - Google Patents
IMPROVEMENT IN ELECTRONIC MOVEMENTS FOR WATCHESInfo
- Publication number
- IT1004259B IT1004259B IT5048774A IT5048774A IT1004259B IT 1004259 B IT1004259 B IT 1004259B IT 5048774 A IT5048774 A IT 5048774A IT 5048774 A IT5048774 A IT 5048774A IT 1004259 B IT1004259 B IT 1004259B
- Authority
- IT
- Italy
- Prior art keywords
- watches
- improvement
- electronic movements
- movements
- electronic
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C13/00—Driving mechanisms for clocks by master-clocks
- G04C13/08—Slave-clocks actuated intermittently
- G04C13/10—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms
- G04C13/11—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4566673A JPS49133066A (en) | 1973-04-24 | 1973-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1004259B true IT1004259B (en) | 1976-07-10 |
Family
ID=12725697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT5048774A IT1004259B (en) | 1973-04-24 | 1974-04-19 | IMPROVEMENT IN ELECTRONIC MOVEMENTS FOR WATCHES |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS49133066A (en) |
| BR (1) | BR7403258D0 (en) |
| CH (2) | CH561474A4 (en) |
| DD (1) | DD111255A1 (en) |
| DE (1) | DE2417852A1 (en) |
| ES (1) | ES425641A1 (en) |
| FR (1) | FR2227570B1 (en) |
| GB (1) | GB1432536A (en) |
| IT (1) | IT1004259B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015891B2 (en) * | 1974-04-04 | 1985-04-22 | セイコーエプソン株式会社 | Gear train structure of battery clock |
| JPS52154673A (en) * | 1976-06-18 | 1977-12-22 | Seiko Instr & Electronics Ltd | Wheel train mechanism of analog crystal watch |
| JPS5388766A (en) * | 1976-12-21 | 1978-08-04 | Seiko Epson Corp | Wheel train for electronic watch |
| JPS54115271A (en) * | 1978-02-28 | 1979-09-07 | Matsushita Electric Works Ltd | Watch device |
| FR2481019A1 (en) * | 1980-04-18 | 1981-10-23 | Cetehor | MOTOR STEP NOT ESPECIALLY FOR ELECTRONIC WATCH |
| GB2286066A (en) * | 1994-02-01 | 1995-08-02 | Wellgain Precision Products Li | Watch |
-
1973
- 1973-04-24 JP JP4566673A patent/JPS49133066A/ja active Pending
-
1974
- 1974-04-11 DE DE19742417852 patent/DE2417852A1/en not_active Ceased
- 1974-04-19 IT IT5048774A patent/IT1004259B/en active
- 1974-04-19 GB GB1729674A patent/GB1432536A/en not_active Expired
- 1974-04-22 DD DD17804774A patent/DD111255A1/xx unknown
- 1974-04-23 BR BR325874A patent/BR7403258D0/en unknown
- 1974-04-24 CH CH561474D patent/CH561474A4/en unknown
- 1974-04-24 FR FR7414273A patent/FR2227570B1/fr not_active Expired
- 1974-04-24 CH CH561474A patent/CH591111A/xx not_active IP Right Cessation
- 1974-04-24 ES ES425641A patent/ES425641A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49133066A (en) | 1974-12-20 |
| FR2227570A1 (en) | 1974-11-22 |
| FR2227570B1 (en) | 1977-10-28 |
| CH561474A4 (en) | 1977-02-15 |
| GB1432536A (en) | 1976-04-22 |
| CH591111B5 (en) | |
| BR7403258D0 (en) | 1974-11-19 |
| ES425641A1 (en) | 1976-06-16 |
| DD111255A1 (en) | 1975-02-05 |
| CH591111A (en) | 1977-09-15 |
| DE2417852A1 (en) | 1974-11-07 |
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