IT966291B - Perfezionamento negli orologi da polso elettrici a cristallo di quarzo - Google Patents

Perfezionamento negli orologi da polso elettrici a cristallo di quarzo

Info

Publication number
IT966291B
IT966291B IT53311/72A IT5331172A IT966291B IT 966291 B IT966291 B IT 966291B IT 53311/72 A IT53311/72 A IT 53311/72A IT 5331172 A IT5331172 A IT 5331172A IT 966291 B IT966291 B IT 966291B
Authority
IT
Italy
Prior art keywords
improvement
quartz crystal
crystal electric
wristwatches
electric wristwatches
Prior art date
Application number
IT53311/72A
Other languages
English (en)
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.)
Filing date
Publication date
Application filed by Suwa Seikosha Kk filed Critical Suwa Seikosha Kk
Application granted granted Critical
Publication of IT966291B publication Critical patent/IT966291B/it

Links

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 Perfezionamento negli orologi da polso elettrici a cristallo di quarzo IT966291B (it)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=14039225

Family Applications (1)

Application Number Title Priority Date Filing Date
IT53311/72A IT966291B (it) 1971-11-18 1972-10-11 Perfezionamento negli orologi da polso elettrici a cristallo di quarzo

Country Status (8)

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

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 (nl) * 1973-02-19 1977-09-16 Kienzle Uhrenfabriken Gmbh
JPS5740759B2 (nl) * 1973-07-17 1982-08-30
IT1039870B (it) * 1974-07-26 1979-12-10 Eurosil Gmbh Disposizione di connessioni per puntare rispettivamente per regolare un dispositivo per la misurazione del tempo
US4133169A (en) * 1974-08-30 1979-01-09 Ebauches S.A. Electronic circuit for a quartz crystal watch
JPS569672B2 (nl) * 1974-09-06 1981-03-03
JPS5170676A (nl) * 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 (de) * 1975-12-25 1983-07-28 Citizen Watch Co., Ltd., Tokyo Elektronische Uhr
US4150536A (en) * 1976-01-28 1979-04-24 Citizen Watch Company Limited Electronic timepiece
JPS5922192B2 (ja) * 1976-07-09 1984-05-24 セイコ−光機株式会社 リセツト解除時に生ずる時間誤差を補償する時計用回路
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
JPS62247282A (ja) * 1987-03-05 1987-10-28 Seiko Epson Corp 指針式電子時計
JPS62247281A (ja) * 1987-03-05 1987-10-28 Seiko Epson Corp 指針式電子時計
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
CH500532A (fr) * 1962-11-16 1968-02-15 Vogel & Cie P Montre électronique
DE1773675A1 (de) * 1967-08-28 1971-04-01 Benrus Watch Co Inc Elektrouhrsystem
US3560998A (en) * 1968-10-16 1971-02-02 Hamilton Watch Co Electronically controlled timepiece using low power mos transistor circuitry
CH812769A4 (nl) * 1969-05-29 1972-03-15
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

Also Published As

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

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