(19)
(11) EP 0 342 705 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.05.1990 Bulletin 1990/21

(43) Date of publication A2:
23.11.1989 Bulletin 1989/47

(21) Application number: 89109092.0

(22) Date of filing: 19.05.1989
(51) International Patent Classification (IPC)4: G04C 3/00, G04C 1/06
(84) Designated Contracting States:
CH DE FR GB LI

(30) Priority: 19.05.1988 JP 122582/88

(71) Applicant: SEIKO EPSON CORPORATION
Shinjuku-ku Tokyo-to (JP)

(72) Inventor:
  • Miyazawa, Osamu
    Suwa-shi Nagano-ken (JP)

(74) Representative: Hoffmann, Eckart, Dipl.-Ing. et al
Patentanwalt, Bahnhofstrasse 103
82166 Gräfelfing
82166 Gräfelfing (DE)


(56) References cited: : 
   
       


    (54) Electronic watch


    (57) An electronic watch includes a means (10) for accumulating rotational energy of an intermittently driven actuator (1, 2, 4) and a control means (14, 17) for releasing the rota­tional energy. The accumulating and control means are coaxially provided apart from the central spindle (3) mounted with a hand (16). The control means involves a rotor (14) immersed in a viscous fluid (17). The accumu­lating means involves a hair spring (10) or a pair of permanent magnets.







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