Electronic timepiece
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United States of America Patent
Stats
-
Jul 21, 1981
Grant Date -
N/A
app pub date -
Jul 24, 1978
filing date -
Jul 29, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic timepiece having a battery lifetime detection mechanism is provided with a control circuit and external operation member the suitable manipulation of which permits a battery lifetime warning indication, produced in response to a signal from the detection mechanism, to be temporarily displayed in the normal time display mode, transferred to an permanently displayed in another display mode, or converted to an audible warning tone if suitable acoustic means are provided.
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Family
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Cited Art Landscape
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