Are Casio Watches Waterproof? The Limits & Standards

If you are a scuba diver looking for an affordable but high-quality watch, Casio is a good brand to consider since they have gained a name over the years.

Particularly, their timepieces are best known for shock resistance.

They are designed for the “great outdoors,” where conditions can be unexpectedly rough.

Hence, Casio timepieces are the top choice for adventurers and athletes.

Many military service members also choose it over other brands on the market. 

There are no reasons why you should stall on getting a Casio watch.

But, one last question before you make the call: Are Casio watches waterproof


Are Casio Watches Waterproof? 

Casio watches are NOT waterproof. However, they are water-resistant. Even so, the degree of water tightness varies across models

The brand has a specific definition for “water resistance” and offers 4 categories of water tightness: 

To find out all the details of this topic, continue to read! 

Casio Water-Resistance Standards

As mentioned briefly earlier, Casio does NOT offer waterproof watches, only water-resistant ones.

The brand has its definition of what the water-resistant standard is.

Specifically, their “water resistance” can forgive water splashes but not water under pressure. 

Casio products that can resist water comply with ISO 2281 and DIN 8310.

These standards indicate that the watches have passed testing procedures to withstand the impact of water at a given level of static pressure. 

The difference in static pressure entails different degrees of water tightness.

Previously, we delineated four categories of water tightness: 

50m Water Resistance

This is when the static pressure is at 5 Bar—equivalent to a 50-meters hypothetical water column.

At this level, watches are wearable for hand washing, bathing, and showering.

It is also safe for swimming or exercising in shallow waters. 

100m Water Resistance

This is when the static pressure is at 10 Bar—equivalent to a 100-meters hypothetical column of water.

At this level, watches are wearable for snorkeling and poolside diving. 

200m Water Resistance

This is when the static pressure is at 20 Bar—equivalent to a 200-meters hypothetical column of water.

At this level, watches are wearable for jet skiing, high-board diving, and other high-impact water sports. 

Diver’s Watch 200m

This is when the static pressure is at 20 Bar or more—equivalent to a 200-meters-or-more hypothetical column of water.

At this level, watches are wearable for free-diving or scuba diving without equipment.

Outside of these four categories, Casio also offers special models with 3 Bar and 5 Bar static pressure.

The former corresponds with a hypothetical 30-meters column of water and entails that a timepiece can endure some accidental water splashing.

The latter resists a bit more water than that—little rain and bathing but not swimming. 

Can You Scuba Dive With A Casio G-Shock? 

Generally, a G-Shock can function properly even when you go scuba diving.

However, you must get a “Diver’s Watch 200m” model. 

Here are three options that you can consider:


This is one of the best models in Casio’s product line for divers.

You can rely on its performance up to depths of 200 meters.

Aside from its durability underwater, this model has other handy features for users who are divers. 

There is a tough stainless steel case, a scratch-resistant crystal, an uncluttered display, and a calendar window, all of which make it a perfect underwater buddy.

On top of that, it is very affordable.

There is also a warranty that gives you peace of mind. 


Like the model mentioned above, this ticker is specifically made for divers.

It can withstand water pressures of up to 200 meters.

A bright LED light makes the dials easy to read, even underwater and in unlit conditions. 

A countdown timer running from 1 minute to 24 hours is available, and a lightweight but tough resin case as well.

All in all, it is an ideal diving item. 

Despite being a bit pricier than the model mentioned earlier, you will surely get your money’s worth.

You can depend on it while scuba diving and doing other water sports. 

G-Shock Frogman

This is a classic choice among scuba diver users.

Like the previously mentioned models, this product can tell time at depths of up to 200 meters.

The best feature that it offers is a “smart” function for users to record the number of dives made and how long they have been under the water.

Users can log up to ten dives! 

In addition, its battery is solar-powered for long dives.

You do not have to worry about the battery running out halfway through your dive.

There is a tide graph, moon phase indicator, and many other amazing features that make it a multi-functional companion.

For its value, this model is the priciest among our three recommended choices


  • Except for models inscribed as “Diver’s Watch 200m”, it is not safe to operate the buttons and crowns underwater. 
  • Even if a Casio product is considered water-resistant, it is best not to use it in wet conditions with soap, shampoo, and other detergents. Said substances can reduce the water resistance efficacy. 
  • It is also essential to take good care of the watch. After submersion in saltwater, make sure you rinse off all the salt and dirt using plain water. Furthermore, when changing the battery, always double and triple-check that the back case is sealed correctly. 


Can I swim with my Casio watch?

Yes, you can swim with most Casio watches.

As explained earlier, their models starting from 50m water resistance are wearable for swimming. 

Can you swim with Casio F91W?

This is one of the best-sellers in Casio’s classic product line.

It is water-resistant so that you can swim with it on.

All in all, the F91W has all the essentials of a watch: hourly time signal, daily alarm, and auto calendar. 

Can you shower with a Casio Watch?

Yes, you can swim with any Casio watch that is labeled as water-resistant.

The models from the 50m water resistance onwards are safe to be worn even while showering. 

How long does the Casio G-Shock watch last? 

G-Shock watches are known for their durability.

Thanks to their quality build and careful design, these Casio watches can serve users for as long as ten years.

Still, this comes with considerate care and maintenance. 


By the end of this article, you should acquire all the necessary information about Casio watches’ waterproof (or resistance) standards.

As a scuba diver, this is an important criterion to check when purchasing a new ticker. 

Hopefully, our sharing has helped you decide whether you should get a Casio’s watch to accompany you in your scuba diving ventures.

Let us know what you thought of the content and any queries that are still bugging you below.

Last Updated on April 4, 2022 by The o.d.m team