JPS55107982A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS55107982A
JPS55107982A JP1577679A JP1577679A JPS55107982A JP S55107982 A JPS55107982 A JP S55107982A JP 1577679 A JP1577679 A JP 1577679A JP 1577679 A JP1577679 A JP 1577679A JP S55107982 A JPS55107982 A JP S55107982A
Authority
JP
Japan
Prior art keywords
source
temperature characteristics
synthesizer
steps
electronic watch
Prior art date
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
Application number
JP1577679A
Other languages
Japanese (ja)
Inventor
Yoshiki Iwakura
Shigeru Morokawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP1577679A priority Critical patent/JPS55107982A/en
Publication of JPS55107982A publication Critical patent/JPS55107982A/en
Pending legal-status Critical Current

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  • Electric Clocks (AREA)

Abstract

PURPOSE: To enable the step adjusting of an electronic watch without losing its flat temperature characteristics by combining a time standard signal source having composite resonance oscillator with an adjustable frequency converter.
CONSTITUTION: A crystal oscillator having flat temperature characteristics is formed using a composite resonance circuit having a plurality of crystal vibrators having different temperature characteristics as a time standard signal source 701. A counting unit signal synthesizer 702 converts the frequency of the output signal from the source 701 according to the output signal from an external operation mechanism 705. Then, the output from the synthesizer 702 displays the time through a counter mechanism 703 on a display mechanism 704. When thus formed, the steps can be adjusted by the external operation mechanism 705 in a synthesizer 702 after the source 701. Accordingly, it does not lose the temperature characteristics of the source 701 for controlling the steps of the watch.
COPYRIGHT: (C)1980,JPO&Japio
JP1577679A 1979-02-14 1979-02-14 Electronic watch Pending JPS55107982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1577679A JPS55107982A (en) 1979-02-14 1979-02-14 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1577679A JPS55107982A (en) 1979-02-14 1979-02-14 Electronic watch

Publications (1)

Publication Number Publication Date
JPS55107982A true JPS55107982A (en) 1980-08-19

Family

ID=11898208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1577679A Pending JPS55107982A (en) 1979-02-14 1979-02-14 Electronic watch

Country Status (1)

Country Link
JP (1) JPS55107982A (en)

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