AT300670B - Armbanduhr mit einem piezoelektrischen Kristall als zeithaltendem Schwinger - Google Patents

Armbanduhr mit einem piezoelektrischen Kristall als zeithaltendem Schwinger

Info

Publication number
AT300670B
AT300670B AT1038769A AT1038769A AT300670B AT 300670 B AT300670 B AT 300670B AT 1038769 A AT1038769 A AT 1038769A AT 1038769 A AT1038769 A AT 1038769A AT 300670 B AT300670 B AT 300670B
Authority
AT
Austria
Prior art keywords
time
piezoelectric crystal
wrist watch
oscillator
keeping
Prior art date
Application number
AT1038769A
Other languages
English (en)
Original Assignee
Junghans Gmbh Geb
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 Junghans Gmbh Geb filed Critical Junghans Gmbh Geb
Application granted granted Critical
Publication of AT300670B publication Critical patent/AT300670B/de

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • 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
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
AT1038769A 1968-11-15 1969-11-05 Armbanduhr mit einem piezoelektrischen Kristall als zeithaltendem Schwinger AT300670B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681809223 DE1809223B2 (de) 1968-11-15 1968-11-15 Armbanduhr mit einem piezoelektrischen kristall als zeithaltendem schwinger

Publications (1)

Publication Number Publication Date
AT300670B true AT300670B (de) 1972-08-10

Family

ID=5713474

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1038769A AT300670B (de) 1968-11-15 1969-11-05 Armbanduhr mit einem piezoelektrischen Kristall als zeithaltendem Schwinger

Country Status (5)

Country Link
US (1) US3693343A (de)
AT (1) AT300670B (de)
CH (2) CH541177A (de)
DE (1) DE1809223B2 (de)
FR (1) FR2023409B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035587A1 (de) * 1970-07-17 1972-01-20 Siemens Ag Uhrenantneb mit piezoelektrischer Stimmgabel
GB1361229A (en) * 1970-07-27 1974-07-24 Suwa Seikosha Kk Electric watches
US3740942A (en) * 1971-01-28 1973-06-26 Timex Corp Low amplitude indexing mechanism for horological instruments
GB1343223A (en) * 1971-02-17 1974-01-10 Suwa Seikosha Kk Detent apparatus eg for use in an electronic timepiece
JPS5319944B2 (de) * 1971-09-25 1978-06-23
DE2200477C3 (de) * 1972-01-05 1983-11-17 Citizen Watch Co., Ltd., Tokyo Elektronische Analoguhr
US3791133A (en) * 1972-06-22 1974-02-12 Citizen Watch Co Ltd Crystal oscillator type small timepiece
DE2617077C3 (de) * 1976-04-17 1981-07-02 Timex Corp., 06720 Waterbury, Conn. Quarzgesteuerte Analog-Armbanduhr mit direktem Antrieb des Minutenrades
CH658567GA3 (de) * 1984-03-28 1986-11-28
DE102005044474B3 (de) * 2005-09-16 2007-01-04 Groz-Beckert Kg Schaftstab und Webschaft
DE102009046647B4 (de) * 2009-11-12 2015-05-21 Lothar Schmidt Uhr

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282042A (en) * 1964-09-10 1966-11-01 Bulova Watch Co Inc Crystal controlled chronometer
FR1442972A (fr) * 1965-08-12 1966-06-17 Mecewa Ag Horloge ou montre électrique
FR1517115A (fr) * 1966-02-10 1968-03-15 Suisse Horlogerie Montre électronique
FR1539922A (fr) * 1967-08-09 1968-09-20 Lip Sa Appareil horaire portatif

Also Published As

Publication number Publication date
DE1809223C3 (de) 1978-11-23
CH541177A (de) 1973-03-30
DE1809223A1 (de) 1970-06-04
CH1618369A4 (de) 1973-03-30
FR2023409A1 (de) 1970-08-21
DE1809223B2 (de) 1972-11-30
US3693343A (en) 1972-09-26
FR2023409B1 (de) 1973-04-06

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee