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About This Item

 

Full Description

Lays down the definition of the term "chronometer", describing the categoeries, the test programme and the acceptable minimum requirements for wrist-chronometers. Wristwatches using a tuning fork oscillator are subjected to these tests pending the availability of separate standards.

 

Document History

  1. ISO 3159:2009


    Timekeeping instruments - Wrist-chronometers with spring balance oscillator

    • Most Recent
  2. ISO 3159:1976

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    Timekeeping instruments -- Wrist-chronometers with spring balance oscillator

    • Historical Version