Water Resistance

Water resistance rating shows how a watch is sealed against water. It is displayed as an indication of the static test pressure that a watch can withstand when exposed to a leakage test. The test pressure can be indicated either directly in bars, atmospheres, or (more commonly) as an equivalent water depth in meters (or feet). 

An indication of the test pressure in terms of water depth does not mean a water resistant watch was designed to be used in such water depths. For example, a 3 ATM (or 30 m) water resistant watch cannot be used in a swimming pool and certainly cannot at 30 meters under water. This is because the test is conducted only once using static pressure on some of the newly manufactured watches. 

Water resistance ratings are as follows:  

  • Water Resistant 3 ATM (30 m): Suitable for everyday use. Splash/rain resistant. NOT suitable for swimming, snorkelling, water related work and fishing. NOT suitable for diving.
  • Water Resistant 5 ATM (50 m): suitable for light swimming (not laps), above water related work, and fishing. NOT suitable for diving
  • Water Resistant 10 ATM (100 m): Suitable for recreational pool swimming, snorkelling, sailing and water sports. NOT suitable for diving.
  • Water Resistant 20 ATM (200 m): Suitable for surf swimming, marine activity and serious surface water sports. NOT suitable for diving.