International Organization for Standardization (ISO)
Latest
ISO 6425:2018
Scope
This document specifies requirements and test methods for divers’ watches and for saturation divers’ watches for use in deep diving (see Annex A which deals with watches for saturation diving).
It applies to divers' watches designed to withstand diving in water at depths of at least 100 m and equipped with a secured measuring system to indicate the diving time, which is visible in darkness.
Moreover, it indicates the marking which the manufacturer is authorized to apply to them.
ISO 6425:2018 Referenced Document
ISO 1413:2016 Horology - Shock-resistant wrist watches
ISO 17514:2004 Time-measuring instruments - Photoluminescent deposits - Test methods and requirements