JPS5712386A - Analog timepiece with stopwatch function - Google Patents

Analog timepiece with stopwatch function

Info

Publication number
JPS5712386A
JPS5712386A JP8558780A JP8558780A JPS5712386A JP S5712386 A JPS5712386 A JP S5712386A JP 8558780 A JP8558780 A JP 8558780A JP 8558780 A JP8558780 A JP 8558780A JP S5712386 A JPS5712386 A JP S5712386A
Authority
JP
Japan
Prior art keywords
stopwatch
circuit
minute
pulse generating
hour
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
JP8558780A
Other languages
Japanese (ja)
Inventor
Katsuo Nishimura
Fukuo Sekiya
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 JP8558780A priority Critical patent/JPS5712386A/en
Publication of JPS5712386A publication Critical patent/JPS5712386A/en
Pending legal-status Critical Current

Links

Classifications

    • 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)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To provide an analog timepiece with a stopwatch function by selecting a frequency dividing circuit for a stopwatch and by driving electromechanical converters for a second, a minute and an hour hand, respectively. CONSTITUTION:According to the operation of a switch 4, electric converting circuits 20 and 23 are driven respectively, under the control of a control circuit 30, through 0-position pulse generating circuits 15a and 15b, a pulse generating circuit 31, a second clocking circuit 12, a minute/hour clocking circuit 14, control changeover circuits 13a and 13b, etc. Through train wheels 21 and 24, a second hand 6, an hour hand 8 and a minute hand 7 are returned to the 0 position. With a switch 5, a frequency dividing circuit 25 for a stopwatch is turned on. Then, the hands 6, 7 and 8 are similarly driven and controlled by a second clocking circuit 26 for the stopwatch, a 0-position pulse generating circuit 28, a minute/hour clocking circuit 27 for the stopwatch, a 0-position pulse generating circuit 29, etc., to perform stopwatch operation. Resetting to normal time display is carried out similarly and even an analog timepiece is provided with a stopwatch function.
JP8558780A 1980-06-24 1980-06-24 Analog timepiece with stopwatch function Pending JPS5712386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8558780A JPS5712386A (en) 1980-06-24 1980-06-24 Analog timepiece with stopwatch function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8558780A JPS5712386A (en) 1980-06-24 1980-06-24 Analog timepiece with stopwatch function

Publications (1)

Publication Number Publication Date
JPS5712386A true JPS5712386A (en) 1982-01-22

Family

ID=13862937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8558780A Pending JPS5712386A (en) 1980-06-24 1980-06-24 Analog timepiece with stopwatch function

Country Status (1)

Country Link
JP (1) JPS5712386A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0625736A1 (en) * 1993-05-17 1994-11-23 Fabrique D'ebauches De Sonceboz S.A. Chronographic watch with two push buttons and without any crown-stem
CH685142GA3 (en) * 1993-05-17 1995-04-13 Sonceboz Ebauches Fab Watch-chronograph for displaying time of day or measured time
CH685467GA3 (en) * 1994-01-20 1995-07-31 Sonceboz Ebauches Fab Watch-chronograph for displaying time of day or measured time
EP1343057A2 (en) * 2002-03-05 2003-09-10 Frank Müller Watchland S.A. Mechanical timepiece

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995656A (en) * 1972-10-13 1974-09-11
JPS50149375A (en) * 1974-05-21 1975-11-29
JPS54118877A (en) * 1978-03-07 1979-09-14 Seiko Epson Corp Hands display crystal watch
JPS54146667A (en) * 1978-05-10 1979-11-16 Casio Comput Co Ltd Time correcting system of electronic watch
JPS5515097A (en) * 1978-07-13 1980-02-01 Berney Sa Jean Claude Electronic clock
JPS56103387A (en) * 1979-10-09 1981-08-18 Suisse Horlogerie Clock

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995656A (en) * 1972-10-13 1974-09-11
JPS50149375A (en) * 1974-05-21 1975-11-29
JPS54118877A (en) * 1978-03-07 1979-09-14 Seiko Epson Corp Hands display crystal watch
JPS54146667A (en) * 1978-05-10 1979-11-16 Casio Comput Co Ltd Time correcting system of electronic watch
JPS5515097A (en) * 1978-07-13 1980-02-01 Berney Sa Jean Claude Electronic clock
JPS56103387A (en) * 1979-10-09 1981-08-18 Suisse Horlogerie Clock

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0625736A1 (en) * 1993-05-17 1994-11-23 Fabrique D'ebauches De Sonceboz S.A. Chronographic watch with two push buttons and without any crown-stem
CH685142GA3 (en) * 1993-05-17 1995-04-13 Sonceboz Ebauches Fab Watch-chronograph for displaying time of day or measured time
CH685467GA3 (en) * 1994-01-20 1995-07-31 Sonceboz Ebauches Fab Watch-chronograph for displaying time of day or measured time
EP1343057A2 (en) * 2002-03-05 2003-09-10 Frank Müller Watchland S.A. Mechanical timepiece
EP1343057A3 (en) * 2002-03-05 2008-03-26 Frank Müller Watchland S.A. Mechanical timepiece

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