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immediate downloadReleased: 2010-02-28
BS ISO 3159:2009
Timekeeping instruments. Wrist-chronometers with spring balance oscillator
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| Standard number: | BS ISO 3159:2009 |
| Pages: | 14 |
| Released: | 2010-02-28 |
| ISBN: | 978 0 580 68480 7 |
| Status: | Standard |
DESCRIPTION
BS ISO 3159:2009
This standard BS ISO 3159:2009 Timekeeping instruments. Wrist-chronometers with spring balance oscillator is classified in these ICS categories:
- 39.040.10 Watches
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.