(19)
(11) EP 2 251 746 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.05.2012 Bulletin 2012/21

(43) Date of publication A2:
17.11.2010 Bulletin 2010/46

(21) Application number: 10160149.0

(22) Date of filing: 16.04.2010
(51) International Patent Classification (IPC): 
G04B 13/02(2006.01)
C25D 11/02(2006.01)
G04B 15/08(2006.01)
 G04D 3/00(2006.01)
G04B 15/14(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA ME RS

(30) Priority: 11.05.2009 JP 2009114770

(71) Applicant: Seiko Instruments Inc.
Chiba-shi, Chiba (JP)

(72) Inventor:
  • Murazumi, Takuya
    Chiba-shi, Chiba (JP)

(74) Representative: Cloughley, Peter Andrew 
Miller Sturt Kenyon 9 John Street
London WC1N 2ES
London WC1N 2ES (GB)

   


(54) Timepiece Wheel and Timepiece


(57) The present invention aims to provide a timepiece wheel of high wear resistance and superior in durability. The present invention provides a timepiece wheel 130 comprising: a base material 132 formed as a wheel of a metal allowing anodic treatment; and an anodic oxide film 133 formed on the surface of the base material through anodic treatment.







Search report