Water Resistance
Water resistance, although often given in metres, is not a physical depth (except when stated depth tested) that the watch is water resistant to, but rather an indication of what usage is appropriate. Below is a table showing the usage of watches for the various levels or resistance. ATM and BAR means atmospheric pressure, 1 ATM or 1 BAR is equivalent to 10 metres water pressure.
It is strongly recommended never to wear a watch in the shower, bath tub, sauna or similar places, as the extreme heat causes the metal parts to expand at a different rate than the rubber gaskets. This creates small openings that can allow water droplets to penetrate the watch, particularly steam. Do not undo the screw crown under water. Do not use the chronograph pushers underwater. Ensure your screw crown is always done up when not setting the time.
Tips for keeping your watch water resistant (see watch care for more tips)
- Avoid chemicals (petrol, chlorine, perfumes, alcohol, hair sprays etc.), as they may corrode the gaskets
- Reduce the exposure to heat (i.e. keep it away from radiation and hot water)
- Have your watch serviced by an authorised retailer of the brand or official service centre appointed by the manufacturer
| Water Resistant & Water Resistant 30m Splash resistant |
|
i.e. rain or light water splashes, not submergible in water |
| Water Resistant 50m |
5 ATM or 5 BAR |
Light swimming. i.e. still water submergible such as a pool |
| Water Resistant 100m |
10 ATM or 10 BAR |
Surf resistance. i.e. suitable for swimming in the ocean but not at depth |
| Water Resistant 200m |
20 ATM or 20 BAR |
Suitable for normal diving to a depth of approximately 35m |
| Water Resistant 200m + |
|
Suitable for diving beyond normal depths. It is recommended to check what actual depth is appropriate for the specific watch, if diving to extremes |
