JPS54125070A - Battery life display system of battery watch - Google Patents

Battery life display system of battery watch

Info

Publication number
JPS54125070A
JPS54125070A JP3264178A JP3264178A JPS54125070A JP S54125070 A JPS54125070 A JP S54125070A JP 3264178 A JP3264178 A JP 3264178A JP 3264178 A JP3264178 A JP 3264178A JP S54125070 A JPS54125070 A JP S54125070A
Authority
JP
Japan
Prior art keywords
battery voltage
circuit
battery
decrease
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
JP3264178A
Other languages
Japanese (ja)
Inventor
Tomio Oota
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP3264178A priority Critical patent/JPS54125070A/en
Publication of JPS54125070A publication Critical patent/JPS54125070A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To let the display of the decrease in the battery voltage of a 2-hand watch be made easy to see by changing the operating condition of the hands when the supply battery voltage lowers. CONSTITUTION:When the decrease in battery voltage is detected with a battery voltage detecting circuit 8, the circuit 8 controls a hand operation control circuit 3 with the frequency divided outputs of a frequency dividing circuit 2 as sampling signals. Thereby, the driving of a step motor 5 is controlled by way of the circuit 3, driving circuit 4, etc. so that the minute hand assumes the operating condition differing from normal one at intervals of each 2 minutes, thus the decrease in the battery voltage is displayed in an easy-to-see manner.
JP3264178A 1978-03-22 1978-03-22 Battery life display system of battery watch Pending JPS54125070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3264178A JPS54125070A (en) 1978-03-22 1978-03-22 Battery life display system of battery watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3264178A JPS54125070A (en) 1978-03-22 1978-03-22 Battery life display system of battery watch

Publications (1)

Publication Number Publication Date
JPS54125070A true JPS54125070A (en) 1979-09-28

Family

ID=12364467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3264178A Pending JPS54125070A (en) 1978-03-22 1978-03-22 Battery life display system of battery watch

Country Status (1)

Country Link
JP (1) JPS54125070A (en)

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