Is Your Watch Waterproof or Water-Resistant? The Answer May Surprise You

When purchasing a watch, one of the most frequently asked questions is whether it's waterproof or water-resistant. Although the difference between these terms may seem subtle, it is more significant than you might think – especially when you consider the Federal Trade Commission's restrictions regarding the word 'waterproof'.

Understanding the Terminology: Waterproof vs. Water-Resistant

'Waterproof' implies that a watch is completely impervious to water under any circumstances, suggesting that it will remain unharmed regardless of the depth or duration of water exposure. However, this term can be misleading because no watch is entirely immune to water pressure indefinitely, especially under extreme conditions. Recognizing this, the Federal Trade Commission (FTC) banned the term 'waterproof' in advertising for watches in the 1960s.

The FTC found the term potentially misleading, as no product can guarantee complete imperviousness to water in all conditions. As a result, most watch brands now use "water-resistant" to describe their products, offering a more accurate representation of what consumers can expect.

Rolex operates in somewhat of a grey area. They continue to use the term 'waterproof', as they have since the 1920s, especially for models like the Submariner and Sea-Dweller that are known for their exceptional performance underwater. Despite the FTC’s ban, Rolex’s use of 'waterproof' has become synonymous with their reputation for innovation and precision in creating watches designed to withstand extreme conditions.

A Brief History: Rolex and the Invention of Waterproof Watches

Rolex is a brand known for luxury and innovation, and they are famous for developing highly-water-resistant watches. In 1926, Rolex introduced the Oyster, which was the world's first "waterproof" wristwatch, as described by Rolex. The watch had a hermetically sealed case, making it resistant to dust, dirt, and most importantly, water. To demonstrate its effectiveness, Rolex famously tested the Oyster by attaching it to the swimmer Mercedes Gleitze during her attempt to swim across the English Channel. After more than 10 hours in the water, the watch emerged in perfect working condition, solidifying Rolex's reputation for durability and precision.

Today's Rolex Website

To this day, Rolex continues to use 'waterproof' in its branding. This places them in a gray area, as they ostensibly use the term in reference to their historical marketing (at least in America), while other brands strictly comply with the FTC’s regulations. It's worth noting that Rolex tests their professional models to 25% more than their ratings with both positive and negative pressure. They test their non-professional models to 10% more than their ratings with both positive and negative pressure.

What Does Water-Resistant Really Mean?

Most watches today are labeled as water-resistant, but what does that really mean? Here’s a breakdown of common water-resistance ratings:

30 Meters (3 ATM): Splash-proof. Suitable for everyday use, including washing hands or getting caught in the rain, but not for swimming.

50 Meters (5 ATM): Can handle light water activities, such as showering or swimming in shallow water, but not suitable for diving.

100 Meters (10 ATM): Safe for swimming, snorkeling, and other water sports but not for scuba diving.

200 Meters (20 ATM) or more: Suitable for professional marine activities, diving, and high-impact water sports. Watches with this rating are designed to withstand deeper water pressure.

What You Should Know About Caring for Your Water-Resistant Watch

'Hulk Submariner' on Everest Curved End Rubber Strap

Even if your watch has a high water-resistance rating, it's essential to take proper care of it to maintain its performance. Over time, seals and gaskets that keep water out can degrade, especially if exposed to saltwater or chlorine. Regular maintenance and pressure testing by a professional are crucial to ensure that your watch remains water-resistant.

Additionally, you should refrain from manipulating your watch's crown or pushers while it's submerged in water, as this can compromise its water resistance.

The Final Verdict: Is Your Watch Waterproof or Water-Resistant?

Image Source: Rolex

If you own an Oyster-cased Rolex, you can confidently state that your watch is water resistant (if tested) due to its historic Oyster construction. However, it's important to note that no watch can be truly 'waterproof' and the terminology exists in a legal gray area because of FTC regulations. Technically, 'water-resistant' is the more accurate term, used by virtually all other brands. While these watches can handle exposure to water to varying degrees, they are not entirely waterproof.

When you're buying a watch, it's important to understand its water-resistance rating and how it fits into your lifestyle. Whether you're a swimmer, diver, or simply someone who enjoys a durable timepiece, knowing the difference between waterproof and water-resistant can help you make an informed decision and ensure that your watch lasts a long time. So, the next time you take your watch for a dip, remember: no watch is waterproof, but you can always test its water resistance.