IT966291B - IMPROVEMENT IN QUARTZ CRYSTAL ELECTRIC WRISTWATCHES - Google Patents

IMPROVEMENT IN QUARTZ CRYSTAL ELECTRIC WRISTWATCHES

Info

Publication number: IT966291B
Authority: IT; Italy
Prior art keywords: improvement; quartz crystal; crystal electric; wristwatches; electric wristwatches
Prior art date: 1971-11-18

Application number

IT53311/72A

Other languages

Italian (it)

Original Assignee

Suwa Seikosha Kk

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.)

1971-11-18

Filing date

1972-10-11

Publication date

1974-02-11

1972-10-11 Application filed by Suwa Seikosha Kk filed Critical Suwa Seikosha Kk

1974-02-11 Application granted granted Critical

1974-02-11 Publication of IT966291B publication Critical patent/IT966291B/en

Classifications

- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G5/00—Setting, i.e. correcting or changing, the time-indication
- G04G5/02—Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method
- 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
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F8/00—Apparatus for measuring unknown time intervals by electromechanical means
- G04F8/006—Apparatus for measuring unknown time intervals by electromechanical means running only during the time interval to be measured, e.g. stop-watch

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Electromechanical Clocks (AREA)
Electric Clocks (AREA)
Control Of Stepping Motors (AREA)

IT53311/72A 1971-11-18 1972-10-11 IMPROVEMENT IN QUARTZ CRYSTAL ELECTRIC WRISTWATCHES IT966291B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP46091893A JPS4857678A (en)	1971-11-18	1971-11-18

Publications (1)

Publication Number	Publication Date
IT966291B true IT966291B (en)	1974-02-11

Family

ID=14039225

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT53311/72A IT966291B (en)	1971-11-18	1972-10-11	IMPROVEMENT IN QUARTZ CRYSTAL ELECTRIC WRISTWATCHES

Country Status (8)

Country	Link
US (1)	US3792577A (en)
JP (1)	JPS4857678A (en)
CH (2)	CH576165B5 (en)
DE (1)	DE2256540C3 (en)
FR (1)	FR2160603B1 (en)
GB (1)	GB1385276A (en)
HK (1)	HK43776A (en)
IT (1)	IT966291B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3964220A (en) *	1970-04-15	1976-06-22	National Gypsum Company	Control joint with tear strip
GB1399024A (en) *	1972-07-12	1975-06-25	Suisse Pour Lindustrie Horloge	Electronic correction circuit in a timepiece
FR2218588B1 (en) *	1973-02-19	1977-09-16	Kienzle Uhrenfabriken Gmbh
JPS5740759B2 (en) *	1973-07-17	1982-08-30
IT1039870B (en) *	1974-07-26	1979-12-10	Eurosil Gmbh	ARRANGEMENT OF CONNECTIONS FOR AIMING RESPECTIVELY TO ADJUST A DEVICE FOR MEASURING TIME
US4133169A (en) *	1974-08-30	1979-01-09	Ebauches S.A.	Electronic circuit for a quartz crystal watch
JPS569672B2 (en) *	1974-09-06	1981-03-03
JPS5170676A (en) *	1974-12-17	1976-06-18	Casio Computer Co Ltd
US4209970A (en) *	1975-03-25	1980-07-01	Citizen Watch Co., Ltd.	Electronic timepiece
US4092820A (en) *	1975-03-25	1978-06-06	Citizen Watch Company Limited	Electronic timepiece
US4044299A (en) *	1975-12-22	1977-08-23	Harold James Weber	Concealed structure locating and surveying translator apparatus
DE2658546C2 (en) *	1975-12-25	1983-07-28	Citizen Watch Co., Ltd., Tokyo	Electronic clock
US4150536A (en) *	1976-01-28	1979-04-24	Citizen Watch Company Limited	Electronic timepiece
JPS5922192B2 (en) *	1976-07-09	1984-05-24	セイコ−光機株式会社	A clock circuit that compensates for the time error that occurs when a reset is released.
GB1537721A (en) *	1976-10-25	1979-01-04	Suisse Horlogerie	Time setting and correcting circuit for electronic timepieces
JPS5798884A (en) *	1980-12-12	1982-06-19	Casio Comput Co Ltd	Time correction system for hand type electronic watch
JPS62247281A (en) *	1987-03-05	1987-10-28	Seiko Epson Corp	Pointer type electronic timepiece
JPS62247282A (en) *	1987-03-05	1987-10-28	Seiko Epson Corp	Pointer type electronic clock
US8318278B2 (en) *	2007-11-21	2012-11-27	Lockheed Martin Corporation	Adhesive attachment and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH1342362A4 (en) *	1962-11-16	1968-02-15
DE1773675A1 (en) *	1967-08-28	1971-04-01	Benrus Watch Co Inc	Electric clock system
US3560998A (en) *	1968-10-16	1971-02-02	Hamilton Watch Co	Electronically controlled timepiece using low power mos transistor circuitry
CH524850A (en) *	1969-05-29	1972-03-15	Vogel Paul	Time reset device of an electronic watch
US3643419A (en) *	1969-07-14	1972-02-22	California Inst Of Techn	Apparatus for fine adjustment of signal frequency
US3690058A (en) *	1969-09-25	1972-09-12	Suwa Seikosha Kk	Electric or electronic timepiece
US3707071A (en) *	1971-03-12	1972-12-26	Hamilton Watch Co	Solid state timepiece

1971
- 1971-11-18 JP JP46091893A patent/JPS4857678A/ja active Pending
1972
- 1972-10-11 IT IT53311/72A patent/IT966291B/en active
- 1972-10-20 US US00308214A patent/US3792577A/en not_active Expired - Lifetime
- 1972-11-13 GB GB5233572A patent/GB1385276A/en not_active Expired
- 1972-11-17 DE DE2256540A patent/DE2256540C3/en not_active Expired
- 1972-11-17 FR FR7240904A patent/FR2160603B1/fr not_active Expired
- 1972-11-20 CH CH1686572A patent/CH576165B5/xx not_active IP Right Cessation
- 1972-11-20 CH CH1686572D patent/CH1686572A4/xx unknown
1976
- 1976-07-08 HK HK437/76*UA patent/HK43776A/en unknown

Also Published As

Publication number	Publication date
DE2256540B2 (en)	1979-10-31
CH1686572A4 (en)	1975-12-31
FR2160603A1 (en)	1973-06-29
JPS4857678A (en)	1973-08-13
HK43776A (en)	1976-07-16
GB1385276A (en)	1975-02-26
CH576165B5 (en)	1976-05-31
DE2256540A1 (en)	1973-05-24
DE2256540C3 (en)	1981-04-30
FR2160603B1 (en)	1976-04-23
US3792577A (en)	1974-02-19

Publication	Publication Date	Title
IT966393B (en)	1974-02-11	IMPROVEMENT IN ELECTRONIC WATCHES
IT973778B (en)	1974-06-10	IMPROVEMENT IN ELECTRONIC WATCHES
IT991972B (en)	1975-08-30	IMPROVEMENT IN ELECTRONIC WATCHES
IT966291B (en)	1974-02-11	IMPROVEMENT IN QUARTZ CRYSTAL ELECTRIC WRISTWATCHES
IT954358B (en)	1973-08-30	PERFECTION IN GLASSES
IT1073651B (en)	1985-04-17	IMPROVEMENT IN LIQUID CRYSTAL ELECTRONIC WATCHES
GB1367247A (en)	1974-09-18	Electronic timepieces
SE387496B (en)	1976-09-06	QUARTZ CRYSTAL RESONATOR
SE380934B (en)	1975-11-17	RECTANGULAR AT-SCREEN QUARTZ CRYSTAL PLATE
IT948595B (en)	1973-06-11	CALENDAR CLOCK
IT966812B (en)	1974-02-20	CALENDAR CLOCK
HK61176A (en)	1976-10-08	Timepiece dial
HK52978A (en)	1978-09-22	Quartz crystal vibrator
CA970862A (en)	1975-07-08	Synchronized quartz crystal watch
IT952541B (en)	1973-07-30	IMPROVEMENT IN PIEZOELETTER CRYSTAL RESONANT DEVICES CO
IT966865B (en)	1974-02-20	CLOCK WITH DATE
CH538137A (en)	1972-12-29	Date watch
GB1364014A (en)	1974-08-21	Timepiece
IT957995B (en)	1973-10-20	IMPROVEMENT IN WATCHES
IT956517B (en)	1973-10-10	CONTINUOUS DISPLAY CLOCKS
AU413304B2 (en)	1971-05-17	Improvements in quartz crystal units
AR198195A1 (en)	1974-06-07	IMPROVEMENTS IN A GLASS STRUCTURE
AU461767B2 (en)	1975-06-05	Improvements in quartz crystals
BE791048A (en)	1973-03-01	INTERCHANGEABLE ELEMENTS SIGN
CH537031A (en)	1973-06-29	Wristwatch