OS GSO ISO 3159:2025
ISO 3159:2009
Omani Standard
Current Edition
·
Approved on
14 October 2025
Timekeeping instruments — Wrist-chronometers with spring balance oscillator
OS GSO ISO 3159:2025 Files
English
5 Pages
Current Edition
Reference Language
OMR
20.41
OS GSO ISO 3159:2025 Scope
ISO 3159:2009 lays down the definition of the term “chronometer”, describing the categories, the test programme and the acceptable minimum requirements for wrist-chronometers.
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