JPS54145169A - Watch apparatus - Google Patents

Watch apparatus

Info

Publication number
JPS54145169A
JPS54145169A JP5227378A JP5227378A JPS54145169A JP S54145169 A JPS54145169 A JP S54145169A JP 5227378 A JP5227378 A JP 5227378A JP 5227378 A JP5227378 A JP 5227378A JP S54145169 A JPS54145169 A JP S54145169A
Authority
JP
Japan
Prior art keywords
time
hands
stop
counter
outputted
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.)
Granted
Application number
JP5227378A
Other languages
Japanese (ja)
Other versions
JPS6117312B2 (en
Inventor
Kazumitsu Kosaka
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP5227378A priority Critical patent/JPS54145169A/en
Publication of JPS54145169A publication Critical patent/JPS54145169A/en
Publication of JPS6117312B2 publication Critical patent/JPS6117312B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE: To make possible reading of the accurate time for the user by detecting the stop of the time display operation of the hand mechanism when it occurs and performing time displaying with an optical display device in place of the hands.
CONSTITUTION: While a wheel train mechanism 6 is being driven and the hands are making time displaying normally, the reset signal is applied to a counter 8 at each 1 minute and therefore no carry signal is outputted and an FF 10 is not set, hence the alarm time is displayed in a displayed in a digital display part 7a. When the voltage of a battery drops or the hands stop owing to a trouble in the wheel train mechanism 6, the carry signal from the counter 8 is outputted and therefore the FF 10 is set and the time information of a time measuring counter circuit 9 is automatically display in the digital display part 7a in place of the hands, thus the correct reading of the time may be accomplished even when the hands stop and the operation stop of the hand mechanism may be known.
COPYRIGHT: (C)1979,JPO&Japio
JP5227378A 1978-05-02 1978-05-02 Watch apparatus Granted JPS54145169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5227378A JPS54145169A (en) 1978-05-02 1978-05-02 Watch apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5227378A JPS54145169A (en) 1978-05-02 1978-05-02 Watch apparatus

Publications (2)

Publication Number Publication Date
JPS54145169A true JPS54145169A (en) 1979-11-13
JPS6117312B2 JPS6117312B2 (en) 1986-05-07

Family

ID=12910167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5227378A Granted JPS54145169A (en) 1978-05-02 1978-05-02 Watch apparatus

Country Status (1)

Country Link
JP (1) JPS54145169A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132990U (en) * 1984-07-30 1986-02-27 リズム時計工業株式会社 Battery life alarm clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132990U (en) * 1984-07-30 1986-02-27 リズム時計工業株式会社 Battery life alarm clock

Also Published As

Publication number Publication date
JPS6117312B2 (en) 1986-05-07

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