Water Resistance
Water Resistance
Water Resistance
There are various levels of water resistance. To check the water resistance of your watch, please see the water resistance level indicated on the dial and/or case back. You should use your watch appropriately corresponding to its water resistance level.
* "1 bar" is nearly equal to one atmosphere.
* For design reasons, the water resistance level is not shown on some watches.
The watch shown in the photo is marked “W.R. 20 BAR”, which indicates that the watch is water resistant to 20 bars.
Example of water resistance level marking
- AIR DIVER'S 300m
- AIR DIVER'S 200m
- He-GAS DIVER'S 1000
- He-GAS DIVER'S 800
- He-GAS DIVER'S 300
- PROFESSIONAL DIVER'S 1000m
- PROFESSIONAL DIVER'S 800m
- PROFESSIONAL DIVER'S 300m
- WATER RESIST (W.R.) 300m
- WATER RESIST (W.R.) 200m
- WATER RESIST (W.R.) 20bar
- WATER RESIST (W.R.) 10bar
- WATER RESIST (W.R.) 5bar
- WATER RESIST
- No display
PROFESSIONAL DIVER'S 1000m／He-GAS DIVER'S 1000
| Name | Water resistant for saturation diving (water resistant to 1,000 m) |
|---|---|
| Water Resistance and Description | Pressure resistant to a depth of 1,000 m and featuring a helium-resistant airtight structure. |
PROFESSIONAL DIVER'S 800m／He-GAS DIVER'S 800
| Name | Water resistant for saturation diving (water resistant to 800 m) |
|---|---|
| Water Resistance and Description | Pressure resistant to a depth of 800 m and featuring a helium-resistant airtight structure. |
PROFESSIONAL DIVER'S 300m／He-GAS DIVER'S 300
| Name | Water resistant for saturation diving (water resistant to 300 m) |
|---|---|
| Water Resistance and Description | Pressure resistant to a depth of 300 m and featuring a helium-resistant airtight structure. |
WATER RESIST 300m／AIR DIVER'S 300m
| Name | Water resistant for diving (water resistant to 300 m) |
|---|---|
| Water Resistance and Description | Pressure resistant to a depth of 300 m and featuring water resistance suitable for long periods of underwater use. Ideal for both skin diving and scuba diving. Note that it is not suitable for saturation diving. |
WATER RESIST 200m／AIR DIVER'S 200m
| Name | Water resistant for diving (water resistant to 200 m) |
|---|---|
| Water Resistance and Description | Pressure resistant to a depth of 200 m and featuring water resistance suitable for long periods of underwater use. Ideal for both skin diving and scuba diving. Note that it is not suitable for saturation diving. |
WATER RESIST 20bar／W.R. 20BAR
| Name | Enhanced water resistance for everyday use (water resistant to 20 bars) |
|---|---|
| Water Resistance and Description | Safe for use by people engaged in work that involves frequent contact with water (fishing, farming, car washing, catering, etc.) or in free diving or aquatic sports (swimming, yachting, fishing, etc.). The buttons cannot be used while moistened (water droplets). |
WATER RESIST(ANT) 10bar／W.R. 10BAR
| Name | Enhanced water resistance for everyday use (water resistant to 10 bars) |
|---|---|
| Water Resistance and Description | Safe for use by people engaged in work that involves frequent contact with water (fishing, farming, car washing, catering, etc.) or in free diving or aquatic sports (swimming, yachting, fishing, etc.). The push buttons cannot be used under water. |
WATER RESIST(ANT) 5bar／W.R. 5BAR
| Name | Enhanced water resistance for everyday use (water resistant to 5 bars) |
|---|---|
| Water Resistance and Description | Recommended for people engaged in work that involves frequent contact with water, aquatic sports or similar activities. Note that it is not suitable for free diving. |
WATER RESIST(ANT)
| Name | Water resistant for everyday use (water resistant to 3 bars) |
|---|---|
| Water Resistance and Description | While this watch can withstand moisture such as the perspiration produced in everyday activities and splashing from face washing or rainfall, it should not be used in conditions where there are significant changes in water pressure. |
(No display)
| Name | Non-water-resistant |
|---|---|
| Water Resistance and Description | Avoid contact with water. |
Maintaining Water Resistance
To ensure that they are resistant to water, water resistant watches use components known as water resistant gasketsaround watch parts such as the case back, crown and watch glass.
Over long periods of use, water resistant gaskets may lose their elasticity and become brittle or crack easily due to exposure to sweat and moisture. In addition, scratches or chips in the glass or other structural problems can combine to reduce the water resistance of a water-resistant watch. To maintain the water resistance of your watch, it is recommended that you not only use the watch appropriately, but that you also have your watch serviced regularly.
* Charges apply to regular servicing.
• For watches with replaceable batteries, water resistant gaskets are also replaced during battery replacement.
• For Eco-Drive watches and other watches that do not require regular battery replacement, we recommend that the water resistant gaskets be replaced every 2-3 years.
If any water gets inside your watch
If water ever gets inside your watch, immediately stop using it and take it in for repairs. Water inside a watch can damage parts such as the mechanism, precision electronic components or the dial.