Horology: time measuring systems or devices – With calendar indicator
Reexamination Certificate
2006-09-19
2006-09-19
Miska, Vit W. (Department: 2841)
Horology: time measuring systems or devices
With calendar indicator
C368S034000
Reexamination Certificate
active
07110325
ABSTRACT:
To provide an electronic timepiece having a simple constitution, being excellent in durability in an electronic timepiece and made to change date display of date display means in accordance with rotation of a time hand. A 24 o'clock detecting switch detects 24 o' clock. A crown rotation switch is made ON when a crown for rotating a time hand is rotated regularly by a predetermined angle and a crown rotation switch is made ON when the crown is rotated reversely by the predetermined angle. A control circuit determines whether a rotational direction of the crown is regular rotation or reverse rotation based on the numbers of operating the crown rotation switches ON, when the 24 o'clock detecting switch detects 24 o'clock, the control circuit 106 regularly rotates or reversely rotates date display of the date display means in the direction in accordance with a result of determination of the direction of rotating the crown to change date to tomorrow or yesterday.
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Adams & Wilks
Miska Vit W.
Seiko Instruments Inc.
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