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Watch Water Resistance Guide

Want to find out how water resistant your watch is? What is water resistance in a watch? Follow our watch water resistance guide to preserve the quality of your watch and stop water from invading. 

If "WATER RESISTANT" is not stamped on the back of the watch case then your watch is not water-resistant, and care should be taken not to get it wet as water may damage the mechanics of your timepiece. 

For more information, simply follow our chart below. 

On This Page:

What Does WR Mean On A Watch?
What Is ATM In Watches?
What Does BAR Mean On A Watch?

Watch Water Resistance Infographic

What Does WR Mean On A Watch?

As you may have guessed, WR means ''water resistance''. If your watch is water-resistant, it will have WR or ''water resistance'' marked on the back. Please refer to the above chart to find out how water resistant your watch is. It is worth noting that all watches, even those with 100m+ water resistance, should be kept away from humid conditions. This means steamy spa baths and hot showers. Despite being watertight, watches are not necessarily resistant against humidity and hot air. 

What Is ATM In Watches?

ATM in watches is used to indicate how much static atmospheric pressure a watch can endure when submerged in water. The metrics for ATM and BAR are the same, for example, you will often see 20 BAR/ 20 ATM. Basically, the higher the ATM rating, the more a watch can withstand the atmospheric pressure of being submerged in deep water. 

What Does BAR Mean On A Watch?

BAR is the measurement of pressure and a representation of how well a watch is sealed against the ingress of water. For example, 10 bar equals 100 metres of water resistance. However, that does not mean you can go scuba diving. Please refer to the above chart for more information.