ISO 6425 is an international standard for diving watches. These diving watches are all certified and extensively tested to meet high standards. Thus, these divers are also suitable for the true deep-sea diver and professional diver. But what does this standard actually mean, what does an ISO certified diving watch have that an ordinary diving watch does not?
What is ISO standardisation?
ISO stands for 'International Organisation for Standardisation'. A global federation that has come up with a standardisation for almost everything. And they have done the same for diving watches.
A diving watch does not just 'get' this ISO certificate. For that, it is tested on a large number of points. And the most important part an ISO 6425 diving watch has to fulfil is, how could it be otherwise, being waterproof. And we don't just mean waterproof enough to take a shower with...
Extensively tested for waterproofness
For the ISO 6425 requirements, the diving watch must be able to withstand a water depth of 200 metres for at least 2 hours. Not only that, the watch must also be able to withstand water pressure for three hours at a depth of 3 metres afterwards.
Tip: read more about ISO certified diving watches here
Citizen with ISO 6425: truly waterproof up to 200 metres
Our ISO certified Citizen diving watches are absolutely guaranteed to be waterproof up to 200 metres. Not only that, even after a deep dive, these models are still guaranteed to be waterproof again and again.
Anti-magnetic watch
Another special feature is that an ISO 6425 diving watch must be anti-magnetic. After being influenced by a strong magnetic field, the deviation must not exceed 30 seconds per day. And a diving watch must also definitely be able to take some punishment. It should be impact-resistant and show no deviation more than 1 minute per day after a stroke of 4.43 m/s.
ISO 6425 dive watch: for hobby divers and professionals alike
So an ISO 6425 diving watch is a reliable timepiece. It should be if you are serious about diving, whether as a hobby or a professional!
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