It's one of the most common questions watch owners ask. The answer isn't as simple as checking the water resistance rating—showers and swimming present very different challenges to your timepiece.
The Shower Problem
Many watchmakers recommend against showering with any watch, regardless of water resistance rating. Why? Showers combine several risks that don't exist in swimming:
Temperature changes: Hot water causes metal to expand and contract, potentially compromising gasket seals. Steam can penetrate gaps that liquid water cannot.
Soap and shampoo: These products can degrade rubber gaskets and o-rings over time, reducing water resistance. They can also leave residue that affects the watch's finish.
Direct water pressure: Showerheads can produce surprisingly high water pressure directly on the crown and pushers—far more than you'd experience swimming.
Quick Reference Guide
- 30m watch: No shower, no swimming
- 50m watch: No shower, brief pool swimming okay
- 100m watch: Quick rinse okay, swimming and snorkeling fine
- 200m+ watch: Generally shower-safe, all swimming activities
Swimming Considerations
Swimming in a pool is actually less risky than showering in some ways—the water is cooler, there's no soap, and pressure is distributed evenly. However, pools have their own hazard: chlorine.
Chlorinated water can damage gaskets over time and may affect certain watch finishes. If you swim regularly with your watch, rinse it with fresh water afterward and have water resistance checked annually.
Ocean Swimming
Salt water is harder on watches than fresh water. Salt is corrosive and can work its way into tiny gaps. If you swim in the ocean, always rinse your watch thoroughly with fresh water afterward. Pay special attention to the crown, pushers, and bracelet links where salt can accumulate.
Hot Tubs and Saunas
Avoid hot tubs and saunas with any watch. The extreme temperatures can damage gaskets, lubricants, and even the movement itself. Temperature swings from hot tub to cool air can cause condensation inside the case. No water resistance rating is designed for hot tub temperatures.
The Safe Approach
If you want to wear your watch in water without worry, get a proper dive watch rated to at least 100m (preferably 200m) with a screw-down crown. These are designed for water exposure. For everyday watches, the safest approach is simply removing them before water activities.
Some watch enthusiasts keep a "beater" dive watch specifically for swimming, showering, and water activities, protecting their nicer pieces from water exposure altogether.
After Water Exposure
Whenever your watch gets wet—whether from swimming, rain, or washing your hands—dry it thoroughly with a soft cloth. If it's been in salt water or chlorinated water, rinse with fresh water first. Never operate the crown or pushers while the watch is wet.
Check periodically for any signs of moisture inside the crystal. If you see condensation, take the watch to a professional immediately.