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BS ISO 3159:2009:2010 Edition

BS ISO 3159:2009:2010 Edition

$86.31

Timekeeping instruments. Wrist-chronometers with spring balance oscillator

Published By Publication Date Number of Pages
BSI 2010 14
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This International Standard lays down the definition of the term “chronometer”, describing the categories, the test programme and the acceptable minimum requirements for wrist-chronometers.

NOTE Wristwatches using a tuning fork oscillator are subjected to these tests pending the availability of separate standards.

BS ISO 3159:2009
$86.31