What does atm stand for? For these reasons, you should remove your watch before entering a sauna, hot tub or Jacuzzi. Once it has been opened for a battery change for example this water resistance is not guaranteed. Movement induced dynamic pressure increase is sometimes the subject of urban myths and marketing arguments for diver’s watches with high water resistance ratings. As the watch is moved in water, such as from the motion of swimming, pressure is added from velocity. The analog dial of this Citizen watch is three dimensional and in charcoal color.

That’s what it means is just resistant. Go to race log. Mine has a WR M on it. This list can also be found in your instruction manual and it will help you learn a little more about water resistance in watches. September 27th, 4. The International Organization for Standardization issued a standard for water-resistant watches which also prohibits the term waterproof to be used with watches, which many countries have adopted.

This is because the test is conducted only once using static pressure on a sample of newly manufactured watches. Expert Mount Vernon, Iowa. You can adjust all of your cookie settings by navigating the tabs on the left hand side.

I could be wrong though. Notify me of followup comments via e-mail. I prefer this watches…. This page was last edited on 6 Februaryat Views Read Edit View history. This standard was introduced in as the ISO In practice, the survivability of the watch will depend not only on the water depth, but also on the age of the sealing material, past damage, temperature, and additional mechanical stresses.


Most manufacturers recommend divers to have their diving watch pressure tested by an authorized service and repair facility annually or every two to three years and have the seals replaced. Here, there are no pressure or extreme temperature changes.

Here, we give you some key pointers to inform you of how your watch works. Exposure to environments such as chlorinated pools, salt water or soaps from showering can accelerate drying of the gaskets.

What do the water proof codes on watches mean?

Veteran Grand Rapids, MN. When fully chargedthe Eco-Drive runs continuously for at least days. That’s what it means is just resistant. Leave a Reply Cancel reply Your email address will not be published. This watch is designed to withstand accidental splashing, exposure to rain, aatch, swimming in a pool, and recreational SCUBA diving.

They may be used under conditions where water pressure and temperature vary; German Industrial Norm DIN is an equivalent standard.

Read Seiko 5 for further information! It clarifies the terms used, defines the criteria to be met by the product and specifies the marking which may appear on the product. A primary factor about water resistance to keep in mind is that it is not a permanent condition. Here you will find some water resistant watches that we have on our shop online: These vagueries have since been superseded by ISO Automatic watches or watches with infinite charge such as Citizen Eco-drive watches which are solar powered are ideal for use as aquatic watches, due to the fact that there is no need for a battery change.


Water resistance is measured at a static, or motionless state. The time now is This will minimize any damage that may be caused by moisture. ISO defines a diver’s watch for mixed-gas diving as: Rinse the watch with fresh water after exposure to a chlorinated pool, salt water, soaps, etc.

mwaning More and more people than ever before are interested in how their watch performs underwater and which watches are apt for water sports. For this reason you must always have the battery changed by a professional and let them know that you wish for your watch to remain water resistant.

An indication of the test pressure in terms ,eaning water depth does not mean a water-resistant watch was designed for repeated long-term use in such water depths. Do not copy anything without prior written permission.

How to clean your watch. September 27th, 1.

Water Resistance

Originally Posted by Adhansstuff. If it is WR to m, I don’t see how a little swimming should adversely affect your watch. These have absolutely no water resistance if the crown is not screwed down. It looks very good on every hand…. I have a Timex Ironman 30 lap WrM that is 2 years old. Water Resistant is a common mark stamped on the back of wrist watches to indicate how well a watch is sealed against the ingress of water.