Watch Water Resistance

The water resistance of a watch is measured in atmospheres (atm). The maximum allowable water pressure is generally inscribed on the watch. The pressure in atm is indicated on the case back and also occasionally depth is mentioned on the dial.

The table below provides an information on pressure withstand capability of a watch; they are general empirical values and does not constitute standards.

Water Resistance	Accidental Splashes and Contact with Rain	Swimming, Yachting, Taking a Shower	Bathing and Shallow Diving	Scuba Diving	Saturation Diving
3 ATM	×
5 ATM	×	×
10 ATM	×	×	×
15 ATM	×	×	×
20 ATM	×	×	×
Diver's Watch 200 meters	×	×	×	×
Professional Diver's Watch 1,000 meters	×	×	×	×	×