Can I Swim with My Watch if It Says Water Resistant to 20 ATM?

When you buy a watch that's rated for 20 ATM (Atmospheres), you might assume it's fully waterproof and suitable for all types of water activities, including swimming. However, it's important to understand the limitations and proper precautions to ensure you and your watch's safety.

Understanding the 20 ATM Rating

A watch with a 20 ATM rating is designed to withstand pressures equivalent to being submerged to a depth of approximately 200 meters (656 feet). This seems like an impressive figure and is indeed suitable for swimming and other shallow-water activities. However, the true capabilities of such a watch for more demanding underwater activities like scuba diving need careful consideration.

Types of Water

The type of water you're swimming in can impact your watch's performance. Here are a few things to keep in mind:

Freshwater: Swimming in freshwater, like lakes or rivers, is usually safe for a 20 ATM rated watch. However, it's still important to ensure the seals are intact and maintain the watch properly. Saltwater: Saltwater can be harsher on your watch's seals and internal mechanisms over time, even if the watch is rated for 20 ATM. The salt can corrode materials and degrade the watch's integrity. Chlorinated water: Chlorine in pools or hot tubs can also affect the watch's seals and should be avoided.

Physical Activities

When engaging in water activities, be mindful of the physical stress on your watch. Consider the following:

Diving: Scuba diving or technical diving generally requires specialized diving watches with higher water resistance ratings, such as those rated to 100 ATM or more. Water Sports: Participating in water sports like surfing or snorkeling with a 20 ATM watch can be fine, as long as the splashes and impacts are minimal.

Maintenance and Care

To ensure your watch remains in top condition, follow these maintenance tips:

Regular Cleaning: Clean your watch regularly to remove any salt, chlorine, or other corrosive substances that can damage the seals. Dry the Watch: After swimming or being exposed to water, dry the watch thoroughly to prevent moisture from entering. Check for Damage: Inspect the seals and any other components for any potential damage before each use.

Manufacturer’s Guidelines

Always refer to the manufacturer's guidelines for specific instructions about swimming and water exposure. Guidelines can vary between brands and models, and following these recommendations will ensure your watch is used safely.

By understanding the limitations of a 20 ATM rated watch and taking proper care, you can enjoy swimming and other water activities without compromising the integrity of your timepiece.