Electronic timepiece with a chronograph system
AssigneeCitizen Watch Co., Ltd.
InventorTakeo Muto
Life of this patent
Estimating the term…
Abstract
An electronic timepiece has a minute hand, hour hand, chronograph second hand, chronograph minute hand and chronograph hour hand. A first gear train is provided for transmitting the output of a motor to a second wheel of the chronograph second hand. A second gear train is provided for transmitting the rotation of the chronograph second wheel to a minute wheel of the chronograph minute hand, and a third gear train is separately provided from the first gear train and provided for transmitting the rotation of the chronograph second wheel to an hour wheel of the chronograph hour hand.
Claims6
An electronic timepiece with a chronograph system having a minute hand, and hour hand, a first chronograph second hand, a chronograph minute hand and a chronograph hour hand, comprising:
- a first motor for driving the first chronograph second hand;
- a first gear train for transmitting the output of the first motor to a second wheel of the first chronograph second hand;
- a second gear train for transmitting the rotation of the chronograph second wheel to a minute wheel of the chronograph minute hand;
- a third gear train separately provided from the second gear train and provided for transmitting the rotation of the chronograph second wheel to an hour wheel of the chronograph hour hand.
Dependencies are inferred from the claim text.