ES425641A1 - Reloj de cristal de cuarzo. - Google Patents

Reloj de cristal de cuarzo.

Info

Publication number
ES425641A1
ES425641A1 ES425641A ES425641A ES425641A1 ES 425641 A1 ES425641 A1 ES 425641A1 ES 425641 A ES425641 A ES 425641A ES 425641 A ES425641 A ES 425641A ES 425641 A1 ES425641 A1 ES 425641A1
Authority
ES
Spain
Prior art keywords
quartz crystal
movement
stepper motor
divider circuit
fitted
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.)
Expired
Application number
ES425641A
Other languages
English (en)
Spanish (es)
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Publication of ES425641A1 publication Critical patent/ES425641A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by primary clocks
    • G04C13/08—Secondary clocks actuated intermittently
    • G04C13/10—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms
    • G04C13/11—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Control Of Stepping Motors (AREA)
ES425641A 1973-04-24 1974-04-24 Reloj de cristal de cuarzo. Expired ES425641A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4566673A JPS49133066A (enrdf_load_stackoverflow) 1973-04-24 1973-04-24

Publications (1)

Publication Number Publication Date
ES425641A1 true ES425641A1 (es) 1976-06-16

Family

ID=12725697

Family Applications (1)

Application Number Title Priority Date Filing Date
ES425641A Expired ES425641A1 (es) 1973-04-24 1974-04-24 Reloj de cristal de cuarzo.

Country Status (9)

Country Link
JP (1) JPS49133066A (enrdf_load_stackoverflow)
BR (1) BR7403258D0 (enrdf_load_stackoverflow)
CH (2) CH591111A (enrdf_load_stackoverflow)
DD (1) DD111255A1 (enrdf_load_stackoverflow)
DE (1) DE2417852A1 (enrdf_load_stackoverflow)
ES (1) ES425641A1 (enrdf_load_stackoverflow)
FR (1) FR2227570B1 (enrdf_load_stackoverflow)
GB (1) GB1432536A (enrdf_load_stackoverflow)
IT (1) IT1004259B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6015891B2 (ja) * 1974-04-04 1985-04-22 セイコーエプソン株式会社 電池時計の輪列構造
JPS52154673A (en) * 1976-06-18 1977-12-22 Seiko Instr & Electronics Ltd Wheel train mechanism of analog crystal watch
JPS5388766A (en) * 1976-12-21 1978-08-04 Seiko Epson Corp Wheel train for electronic watch
JPS54115271A (en) * 1978-02-28 1979-09-07 Matsushita Electric Works Ltd Watch device
FR2481019A1 (fr) * 1980-04-18 1981-10-23 Cetehor Moteur pas a pas notamment pour montre electronique
GB2286066A (en) * 1994-02-01 1995-08-02 Wellgain Precision Products Li Watch

Also Published As

Publication number Publication date
CH561474A4 (en) 1977-02-15
CH591111A (enrdf_load_stackoverflow) 1977-09-15
DD111255A1 (enrdf_load_stackoverflow) 1975-02-05
GB1432536A (en) 1976-04-22
CH591111B5 (enrdf_load_stackoverflow)
JPS49133066A (enrdf_load_stackoverflow) 1974-12-20
DE2417852A1 (de) 1974-11-07
FR2227570A1 (enrdf_load_stackoverflow) 1974-11-22
FR2227570B1 (enrdf_load_stackoverflow) 1977-10-28
IT1004259B (it) 1976-07-10
BR7403258D0 (pt) 1974-11-19

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