Good forRain, hand washing and small splashes
AvoidSwimming, showers and strong water spray
Plain-English Watch Guide
Water ratings made simple
The number is a lab rating. It does not mean the watch can go that deep. Use this guide to see what is safe.
Quick Reference
Choose by what you plan to do
Good forSwimming in calm, shallow water
AvoidSnorkelling, diving or pressing buttons in water
Good forSwimming and snorkelling
AvoidScuba diving or using buttons underwater
Good forSwimming, snorkelling and rough surface water
AvoidScuba unless the watch says Diver’s 200 m
Three rules to protect your watch
Do not press buttons underwater
Water can enter when you press a button. Only do this if the manual says it is safe.
Keep it away from heat and soap
Hot showers, saunas and soap can damage the seals.
Rinse after salt water
Use fresh water, then dry the watch.
Source: Casio Degree of Water Resistance