Waterproofness for watches

  • Waterproof watches

All water tightness specifications for Avalon Deluxe are in accordance with DIN 8310. You will find the water resistance of your watch engraved on the caseback. Sometimes you can also find the information on the dial. You can also find water resistance information in your user manual. If you are still unsure, do not put your watch in the water.

  • First of all: What is meant by “waterproof” in watches?

Water resistance refers to the watch's resistance to the ingress of water and moisture, which can damage the movement, electronics or mechanics through corrosion, short circuits, etc. destroy and make the watch unusable as a timepiece. Watch manufacturers therefore seal the watch case with special seals to protect the interior. How is water density measured? In order to be able to measure and specify the degree of sealing in a generally binding manner, there are international standards (ISO 22810) that specify the different degrees of water density and the test procedure for determining the water density. Every watch that bears a bar indication has been classified according to these standards and assigned to one of the following groups:

  • 3 and 5 bar are not suitable for swimming:

The watches often say: water resistant to 30 or 50 m. A watch like this should actually be enough for every recreational swimmer and diver. Unfortunately this is not the case. 3 bar corresponds to the pressure at a depth of 30 meters; However, this is only a test print. When swimming and especially when jumping into the water, the pressure on the sealing elements can briefly exceed the guaranteed test pressure. This is also the reason why watches that have a test pressure of 3 or 5 bar are not suitable for swimming and diving.

  • 10 bar for safe swimming:

If you want to swim with your watch without worry (not in salt water), it must have at least a water resistance of 10 bar.

  • 20 bar suitable for diving:

The watch can withstand a pressure of 20 bar. This corresponds to a hypothetical column of water 200 meters high weighing on one square centimeter. The watch can be kept on when diving in medium-deep water.

  • 30 bar / 50 bar / 100 bar for professional divers:

30 bar / 50 bar / 100 bar for professional divers The watch can withstand a pressure of 30 bar and more. This corresponds to a hypothetical water column of 30 / 50 / 100 meters high weighing on one square centimeter. The watch can be used for scuba diving or Diving in deep water. Often these are even watches that are explicitly designated as diving watches.

  • High temperature differences are harmful:

This effect is intensified by a high temperature difference between the clock and the water, such as that caused by sunlight, sauna, etc. can be caused. If you then jump into the water with your watch, the negative pressure caused by the cooling is added to the impact pressure.

  • Salt water is also harmful:

With the exception of special diving watches, you should not wear a watch in salt water, even if it is waterproof up to 10 bar. The salt water attacks the seals and makes them porous.

  • Operation error:

in water, does that exist? In addition to these more technical influencing factors, there are also operating errors that can affect the water resistance of a watch. The crown of your watch only offers protection against water penetration if it sits firmly or – in the case of screw-down crowns – is screwed on tightly. With chronographs there is also the risk that the pushers will be activated in water. If this happens, water penetrates into the housing. So if you are in the water with your watch, avoid any contact with the crown and pushers.

  • Waterproof forever?

Waterproofness is not a permanent property. If you plan to swim regularly with your watch, it should be checked annually. The reason for this lies in the built-in sealing elements, which deteriorate in their function and in daily use. The seals and the components of the watch are subject to a natural aging process, e.g.b can be accelerated by sweat and acids. Due to these external factors, water resistance cannot generally be guaranteed for the entire lifespan of a watch.