A printed rating is not current permission for an activity
It describes a defined test when the watch and seals met specified conditions. Before water exposure, follow the current manufacturer instructions for the exact reference and rely on an appropriate recent test of the individual watch; do not infer swimming, water-sport, or diving suitability from a generic ATM table.
The ATM System (Atmospheres)
Crucial Note: Pressure isn't just about depth; it's about movement. Hitting the water at high speed (like skiing) creates much more pressure than gently resting at the bottom of a pool.
The “Waterproof” Myth
Water resistance is a condition, not a permanent feature. A watch's seals and sealing surfaces can change with age, heat, chemicals, use, opening, impact, and service history.
- Heat: Hot showers or saunas can expand seals and let steam in.
- Chemicals: Chlorine, salt water, and even soap can eat away at gaskets.
Representative Repair Cases
Explore selected repairs from the Gray & Sons archive. A watch is evaluated individually, so the work required for another timepiece may differ.
Related Watch Repair Guides
Request a Watch Repair Evaluation
A repair request begins with an individual inspection and estimate. Send your watch securely or visit Gray & Sons in Surfside, Florida, to discuss the next step.