BS ISO 6425:2018

This standard BS ISO 6425:2018 Horology. Divers' watches is classified in these ICS categories:

• 97.220.40 Outdoor and water sports equipment
• 39.040.10 Watches

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.