Ultra-flat electronic watch
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United States of America Patent
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-
May 10, 1983
Grant Date -
N/A
app pub date -
Sep 6, 1979
filing date -
Sep 6, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The watch of the invention contains a power cell 46, a quartz crystal 44, a step-by-step motor 42, a gear train 32 and a device for the analog display of the time constituted by two coaxial discs provided with index marks 24, 26 and each having external teeth so that they can be driven by the gear train. These components are all located inside a casing 10, 12 with a transparent window 14 and whose back acts as a bottom plate. All 'thick' elements of the watch (cell 46, crystal 44, motor 42, gear train 32) are outside the periphery of the discs without overlapping, when viewed in a direction perpendicular to the front plate of the watch, and are partially recessed into the underside of the rim 12 of the casing. The integrated circuit 50 may be hidden by the discs or also outside their periphery.
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