ISO 3159:1976
International Standard
Historical
·
Approved on
01 February 1976
Timekeeping instruments — Wrist-chronometers with spring balance oscillator
ISO 3159:1976 Files
English
3 Pages
Historical
29.5 BHD
ISO 3159:1976 Scope
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.
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