Title:
AUTOMATIC WINDING WRIST WATCH
Document Type and Number:
Japanese Patent JP3081991
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To suppress enlarging of movement size and thickening of the movement and attain a small and thin size by arranging a calendar device on the dial side of a ground plate.
SOLUTION: In this wrist watch, a barrel wheel 30 is arranged on the back side of dial plate of ground plate 22, that is, the front side so as to have the rotational center in the first region 310 or the fourth region 340 of the ground plate 22. An escape wheel 50, an uncle 60 and a wind ring 70 have respective rotational centers in the third region 330 or the fourth region 340. A stopper 120 and a latch 130 are arranged on the front side of the ground plate 22 and have there swing center in the second region 320. A latch pusher 140 pushes a part of the stopper 120 and a part of the latch 130.
Inventors:
Takahashi, Masaaki
Ishii, Mitsuru
Ishii, Mitsuru
Application Number:
JP1996000261963
Publication Date:
June 30, 2000
Filing Date:
October 02, 1996
Export Citation:
Assignee:
SEIKO INSTR INC
International Classes:
G04B5/16; G04B5/00; G04B5/14; G04B19/00; G04B19/24; G04B19/25; G04B19/253; G04B33/00; G04B33/02; G04B5/00; G04B19/00; G04B33/00; (IPC1-7): G04B33/00; G04B5/00