观察水抗性指南
防水表指南
Watch Water Resistance Guide
ATM/bar ratings and real-world usage guide
Rating
10 ATM
100m / 330ft
Pressure
147 PSI
Safe Activities
- ✓ Swimming
- ✓ Snorkeling
- ✓ Pool diving
- ✓ Water sports
Avoid
- ✗ Scuba diving
- ✗ High-board diving
- ✗ Hot water
Hot Water Warning
NEVER wear any watch in hot water (shower, bath, hot tub, sauna). Heat causes metal to expand at different rates, gaskets to soften, and creates pressure differentials that can force water past seals. This applies to ALL watches regardless of depth rating.
Myths vs Facts
✗ "30m water resistant" means I can swim 30m deep
✓ 30m rating is splash-resistant only. Never swim with a 3ATM watch.
✗ Higher ATM means I can wear it in hot water
✓ NO watch should be worn in hot water. Heat degrades gaskets and creates pressure differentials.
✗ Water resistance is permanent
✓ Gaskets degrade over time. Have water resistance tested annually, especially before water exposure.
✗ A screw-down crown guarantees water resistance
✓ The crown must be fully screwed down. Even then, gaskets age and degrade.
Quick Reference Table
| Rating | Best For |
|---|---|
| 3ATM/30m | Splash resistant only |
| 5ATM/50m | Shower, hand washing |
| 10ATM/100m | Swimming, snorkeling |
| 20ATM/200m | Recreational diving |
| 30ATM/300m | Scuba diving |
| 100ATM/1000m+ | Saturation diving |
免费手表防水指南，可立即获得结果。无需帐户，可在任何设备上使用，完全私密。
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