![]() ![]() Since 1996, there’s also a standard for diving watches – ISO 6425. That’s why a 30m rated watch isn’t suitable for swimming and why you shouldn’t wear a 100m rated watch on a jet-ski. Not to mention severe bursts of pressure on the crystal and crown that occur when you fall off your surfboard or jet-ski. Watches have to deal with all sorts of conditions like long-term exposure to water and sudden changes in temperature and water temperature. Of course, perfect conditions don’t exist in the real world. ![]() Only a sample of produced watches is tested and only for a short time – in static pressure in perfect conditions. It’s not required to test every single one. The watches are also tested for a resistance to different temperatures and a resistance to an overpressure of water and air.īut there’s a “problem” with these tests. ![]() Testing for ISO 22810 includes a water resistance test and a condensation test. Undone Urban chronograph with a water resistance of 30m ISO 22810 In 2010, it was replaced by ISO 22810 which removed all vagueness and updated the content.Īll watches of all brands have to pass the same tests to claim any kind of water resistance. In 1990, the International Organization for Standardization issued a standard for all water resistant watches – ISO 2281. Sometimes it’s mentioned in feet in which case you need to divide it by 3 for the number in meters or bar. The water resistance is mentioned in meters or bar – basically the same thing. The new term was “water-resistant” to a certain stated depth. That’s why the term “waterproof” was dropped in the 1960s. The FTC (Federal Trade Commission) argued that it’s not possible to 100% shield a watch from water at all conditions. In this article, I’ll explain what the different water-resistance ratings mean for your watch and what you can safely do with it. The watch you’re wearing has a water resistance of 100 meters and you’ll never get that deep on a jet-ski so it should be fine. While you’re on the beach in Ibiza, you see people having fun jet-skiing and you want to hop on a jet-ski as well. The swimming pool is 3 meters deep so a watch that is water-resistant up to 30 meters should be ok. Of course, you need to bring a watch (or several) with you. You’re traveling to Greece to relax and spend a lot of time in the swimming pool. ![]()
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