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Just How Waterproof is Your Watch?

Water resistant watch
Water-Resistant Watch for Him

“How waterproof is my watch?” is a very common question that we get asked here at Boundless Collections. And the short answer is … IT’S NOT!!!
There isn’t a watch on earth that can withstand the absolute pressure of mother nature and her deepest ocean trenches. No, watches are, regardless of marketing bollocks, water-resistant, to varying degrees.
So, with that in mind, we thought we’d share with you this simple rule book of sorts, to ensure that your watch doesn’t turn into a receptacle for storing H2O

3 BAR / 3 ATM / 30m / 100ft:
In reality, it means that your watch can withstand splashes of water from washing your hands or getting caught in the rain … and that’s about it. It is also imperative that you don’t take a watch with this little water resistance into the shower with you, because steam has an incredibly nasty habit of getting into places you’d never otherwise imagine.

5 BAR / 5 ATM / 50m / 165ft:
The same rules apply as 3ATM really — splashes of water are fine, swimming not fine. Depending on who you ask, some will say that it’s A-OK to wear a 5ATM watch into the shower, but once again I wouldn’t risk it and, if I’m being frank, wearing a watch in the shower just seems like a resolutely silly idea.

10 BAR / 10 ATM / 100m / 330ft:
Now things are starting to get serious — if a watch is rated to 100 meters or 10ATM of water resistance, it means that you can go swimming with it on or even go snorkeling. You’ll find that often a watch rated to 10ATM also has a screw-down crown and/or screw-down case back, which ensures a superior level of water resistance compared to watches that don’t have these features. However, 10ATM doesn’t mean you can go diving 100 meters below sea level while wearing the watch.

20 BAR / 20 ATM / 200m / 660ft:
Once a watch gets to 200 meters or 20ATM of water resistance, then chances are, it’s a fit-for-purpose dive watch. That means that activities like swimming, snorkeling, or even skin diving are completely fine. However, a watch that’s resistant to 20ATM is not good for saturation diving. For that, we have to go, pardon the pun, deeper.

More than 30 BAR / 30 ATM / 300m / 990ft:
Suitable for all high-impact water sports, scuba diving, and saturation diving.