January 25, 2025
7 Minutes
In the world of luxury watches, few qualities are as crucial yet often misunderstood as water resistance. Whether you own a robust dive watch like a Rolex Submariner, a refined sports-luxury piece such as an Audemars Piguet Royal Oak, or a sophisticated masterpiece like a Patek Philippe Nautilus, preserving water resistance is vital for safeguarding your timepiece’s performance, appearance, and resale value.
Yet, many collectors remain unsure about the steps required to maintain water resistance or how often they need to test their watch’s seals. This comprehensive guide will illuminate the inner workings of water resistance, highlight best practices for ensuring your watch remains watertight, and discuss the role of professional watch servicing. You’ll also discover how Buy Your Watch—trusted by enthusiasts worldwide, from New York to Australia—offers expert testing, maintenance, and solutions for keeping high-end watches in peak condition.
A high-end mechanical watch is a masterpiece of artistry and engineering—yet it’s inherently vulnerable to moisture. Even a modest amount of water infiltration can cause corrosion, degrade lubricants, or lead to rust inside the movement. This not only ruins the watch’s accuracy but can also tarnish precious metals, degrade rubber components, and affect complicated functions like chronographs or calendars.
Beyond daily hazards like accidental splashes or rain, many collectors enjoy wearing their watches while swimming, diving, or engaging in sports. If your watch is rated for such activities, preserving its water resistance is essential for protecting internal components and ensuring it performs reliably under stress.
Bottom Line: A robust water seal not only safeguards the watch’s mechanical integrity but also upholds its market value. Buyers expect that a watch advertised as water-resistant can truly meet its depth rating, and any evidence of water damage can severely decrease resale or trade-in potential.
Seals—usually made of rubber, synthetic, or Teflon-based materials—are placed around the crystal, caseback, crown, and pushers to prevent water from seeping in. Over time, these gaskets deteriorate, losing elasticity and effectiveness, making routine checks and replacements critical.
Whether it’s a screw-down caseback or a monoblock design, the watch case must be constructed to withstand external pressure without warping. Rolex’s Oyster case is the archetype, featuring hermetically sealed components. Other manufacturers incorporate unique engineering details, such as bolted case screws or advanced materials, to maintain resilience against water intrusion.
A timepiece labeled “water-resistant to 100m” doesn’t necessarily mean you can scuba dive to that depth. Many brands follow ISO 22810 or ISO 6425 (for diver’s watches) for consistent testing conditions. Still, real-world usage can differ from lab simulations, emphasizing the importance of practical caution and routine maintenance.
Even trace amounts of moisture inside a watch can create fogging under the crystal or condensation on the dial, a telltale sign that the seal is compromised. Over time, this can degrade lubricants, leading to frictional wear on gears.
Rust or corrosion can eat away at metallic parts, particularly in older or vintage models where certain materials are less corrosion-resistant. This damage may require extensive part replacements, often exceeding routine servicing costs.
If water seeps into critical areas—like the escapement or gear train—accuracy can be drastically affected. Chronograph pushers might become unresponsive, date wheels can jam, and the watch may stop entirely if the movement seizes.
A watch’s crown is a prime entry point for moisture, so always ensure it’s fully screwed down before exposing the watch to water. On models with chronograph pushers, only operate them underwater if the brand specifically designs them for it (like certain professional diver’s watches).
Transitioning from hot tubs to icy waters—or vice versa—causes components to expand or contract, stressing gaskets. If possible, remove your watch before abrupt temperature changes to prolong seal life.
Salt accelerates corrosion. Even if a watch is rated for diving, always rinse it in fresh water post-saltwater adventures, then pat it dry with a soft, lint-free cloth.
Professional watchmakers typically use two primary methods:
Seek out an authorized or specialized watch service center with industry-approved testing equipment. Not all watchmakers have the calibration or skill to handle advanced, high-pressure tests required by dive watches or complicated Swiss timepieces from Rolex, Patek Philippe, or Audemars Piguet.
Rolex pioneered water-resistant watch technology in 1926 with the Oyster case. Models like the Submariner, Sea-Dweller, and Deepsea are revered for their exceptional water resistance. Owners should ensure the Oyster crown is always screwed down snugly and schedule tests periodically to confirm it meets the brand’s benchmark performance.
While known for refined complications and classic aesthetics, Patek Philippe also offers water-resistant models like the Aquanaut and Nautilus lines. Gaskets in precious-metal cases may degrade faster, so consistent checks and mild usage (especially in chlorinated pools) help maintain water resistance.
From Royal Oak Offshore diver references to intricate complications in the Concept series, Audemars Piguet merges sporty flair with haute horlogerie. Gasket health is crucial given the brand’s unique case shapes and screw-locked crowns. Post-service water-resistance tests are indispensable.
Use a soft toothbrush, mild soap, and lukewarm water to remove sweat, dust, or salt residue, then rinse. Avoid submerging if you’re unsure about current water resistance. Thoroughly dry with a microfiber cloth, ensuring no moisture seeps into cracks or pushers.
Even if you have the right tools, opening a watch case without professional knowledge can warp gaskets or misalign the caseback. This drastically increases the risk of leaks. Reserve all internal inspections for qualified watchmakers.
Rubber straps—found frequently in Audemars Piguet or Richard Mille models—can degrade from sun, chlorine, or salt. Wash them gently and inspect regularly for cracks. If your watch has a display caseback, confirm that the outer ring’s seal remains intact.
Buy Your Watch provides an array of services aimed at prolonging the life and value of your luxury watch. Our approach includes:
We partner with specialized watchmakers adept at pressure testing across various depth ratings. Whether you own a vintage Patek or a modern Rolex diver, we generate thorough reports verifying if your watch meets its stated water resistance.
With a clientele spanning from New York to Australia and beyond, our shipping and handling protocols prioritize security, ensuring your watch is protected during transit. Each watch is insured, tested, and serviced by professionals well-versed in brand nuances.
High-end watch owners require reliability. Our transparent quotes for water resistance checks, part replacements, and complete overhauls ensure you never face hidden fees. We also maintain strong relationships with brand-authorized technicians for specialized repairs or tricky parts acquisitions.
Whenever your watch is not in use—especially if you store it in a winder or box—double-check that the crown is fully screwed down (if applicable). Even a partial misalignment can break the seal.
Avoid storing your watch in overly humid places like bathrooms or near radiators. Temperature fluctuations cause material expansion and contraction, potentially stressing gaskets.
Keep a record of every service, especially water-resistance tests. Prospective buyers appreciate thorough documentation, and it can expedite insurance claims if accidents occur.
Water resistance is no minor feature—particularly for luxury watches that combine emotional value, mechanical intricacy, and potentially substantial financial worth. Whether you wear your watch for daily tasks, ocean escapades, or a blend of both, consistent water-resistant watch maintenance and periodic watch servicing are integral to preserving performance and longevity.
Buy Your Watch stands committed to demystifying water resistance and offering specialized solutions to ensure your prized timepiece remains a reliable companion, free from the perils of moisture infiltration. Through expert inspections, professional repairs, and transparent advice, we help collectors worldwide—be they in New York’s bustling watch scene or Australia’s thriving horology community—keep their wrist treasures in impeccable condition.
Looking to sell your luxury watch? At Buy Your Watch, we offer:
Looking to sell your luxury watch? At Buy Your Watch, we offer:
Looking to service your luxury timepiece? At Buy Your Watch, we offer:
© Buy Your Watch. All Rights Reserved
.Licence No. SHD-0017882
ABN 85 670 502 315
Buy Your Watch is an independent entity and is not affiliated with, sponsored by, or endorsed by Rolex or any other watch brands mentioned on this site.