Method of measuring the accuracy of a mechanical watch
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United States of America Patent
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May 24, 2016
Grant Date -
Dec 12, 2013
app pub date -
Nov 22, 2011
filing date -
Nov 26, 2010
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Abstract
A method of measuring accuracy of a watch including a visual display device, including: storing a first instant, at which the display is in a first display position corresponding to a first image, with a corresponding time reference source; determining a first display value for the first image and stored in a storage in correlation with the first instant; storing, after a determined time interval, a second instant, at which the display is in a second display position corresponding to a second image, with the corresponding source; determining a second display value for the second image and stored in the storage in correlation with the second instant; and calculating displaying on a viewing device the variation in rate of the display.
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