30 m, 3 bar or 3 atm — which unit of measurement correctly expresses the water-resistance of watch? What does “water-resistant” mean? And if you’re wearing a watch that is water-resistant to a depth of ten meters, can you really dive ten meters down with it? We’d like to bring some order into this multiplicity of terms, and we’ve also put together a number of tips for you. Here you can find out more about how to handle a watch perfectly if it comes into contact with water.
Water-resistance is not a permanent quality. Watch seals age at different rates, depending on how the watch is worn and what it is used for. In addition, sealing elements are attacked by sweat and acids, and they deteriorate over time. If a watch is exposed to big changes of temperature — for example, if the wearer takes a sunbath and then jumps into the water — condensation may form inside the case. Saltwater also causes increased corrosion. That’s why a watch should be rinsed in freshwater after a dip in the ocean. We basically recommend having the seals and the water-resistance of a watch checked once a year. We perform this service for our customers free of charge.