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Education 2024-02-01 4 min read

Watch Water Resistance Ratings Explained

Why 30m water resistance doesn't mean you can dive 30 meters deep. Decoding the ratings.

30m / 3 ATM

Splash resistant only. Okay for rain or washing hands. Do NOT swim.

50m / 5 ATM

Suitable for light swimming in shallow water. Not for snorkeling or diving.

100m / 10 ATM

Suitable for swimming and snorkeling. The minimum standard for a 'sports watch'.

200m+ / 20 ATM+

Suitable for scuba diving. Often accompanied by a screw-down crown for added security.

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