회사 소식 Guide to Understanding and Maintaining Waterresistant Watches

Have you ever felt that pang of anxiety when caught in a sudden downpour, splashed by a faucet, or simply forgetting to remove your watch while washing your hands? In today’s world of refined living, a wristwatch is more than a timekeeping device—it’s a statement of personal style and lifestyle. Yet, faced with an overwhelming array of watches and marketing terms like "waterproof" and "water-resistant," how well do you truly understand your timepiece? What level of water pressure can it endure? This guide demystifies watch water resistance, helping you select the right watch for your needs and maintain it properly for lasting companionship.

In horology, "waterproof" and "water-resistant" are not interchangeable. Though often conflated, these terms represent vastly different levels of protection against water intrusion.

• Water-Resistant: Indicates a watch can withstand minor water exposure but isn’t fully impervious. Suitable for occasional splashes, rain, or handwashing, these watches must never be submerged for extended periods or worn during swimming or diving.
• Waterproof: Denotes complete resistance to water ingress, even during prolonged immersion. These watches undergo rigorous testing to withstand high pressure, making them ideal for aquatic activities.

Simply put, water-resistant watches handle light exposure, while waterproof watches offer true freedom in wet environments.

Many watches display "30m," "50m," or "100m" on their dials or casebacks—figures indicating water resistance depth. However, a common misconception is equating these numbers with safe usage depths. In reality, these ratings reflect static pressure tested in controlled lab conditions, not real-world scenarios where movement, water currents, and temperature changes amplify pressure.

Here’s a practical breakdown of common ratings:

• 30m (3ATM): Resists minor splashes (rain, handwashing). Unsuitable for swimming or showers.
• 50m (5ATM): Tolerates brief immersion (shallow swimming). Avoid diving or jumping.
• 100m (10ATM): Suitable for swimming and snorkeling. Not for deep diving.
• 200m (20ATM) and above: Designed for professional diving.

When selecting a watch, prioritize your actual activities over the printed depth rating.

Given their superior protection, why are most watches labeled "water-resistant" rather than "waterproof"? Key reasons include:

• Technical Complexity: Achieving full waterproofing demands advanced engineering and higher costs.
• Material Constraints: Specialized materials and designs may limit aesthetics or functionality.
• Everyday Needs: Most users require only splash resistance, rendering full waterproofing unnecessary.

Note: Even waterproof watches degrade over time, necessitating regular maintenance.

• O-Rings: Rubber, nylon, or Teflon gaskets seal joints (case, crystal, crown, and back) to block water entry.
• Sealants: Internal adhesives reinforce O-rings for enhanced protection.
• Robust Cases: Stainless steel, titanium, or solid gold cases endure high pressure.
• Screw-Down Crowns/Backs: Threaded mechanisms create airtight seals.

Manufacturers validate water resistance through:

• Dry Tests: Pressurized air detects leaks in a dry environment.
• Wet Tests: Submersion under pressure confirms watertight integrity.

Only watches passing these tests earn waterproof certification.

To safeguard your watch’s defenses:

• Avoid extreme temperature shifts (e.g., saunas or hot showers), which stress seals.
• Rinse saltwater off immediately to prevent corrosion.
• Shield O-rings from perfumes or cleaners.
• Never operate buttons underwater.
• Replace aging O-rings periodically.

Tailor your choice to your habits:

• Daily Wear: 30m–50m resistance (e.g., Casio’s Classic line, Tissot’s Le Locle).
• Swimming/Snorkeling: 100m–200m resistance (e.g., Seiko’s Prospex, Citizen’s Promaster).
• Diving: 200m+ professional models (e.g., Rolex Submariner, Omega Seamaster).

For aquatic enthusiasts, consider these icons:

• Rolex Submariner: The benchmark for precision and durability.
• Omega Seamaster: Renowned for accuracy and robustness.
• Blancpain Fifty Fathoms: The original modern dive watch.
• Seiko Prospex: Exceptional value for beginners.

With informed selection and diligent care, your watch will remain a steadfast companion through life’s adventures—dry or wet.