Water proof test for your watches

Water test for your watch, normally we have wet test and dry pressure test, in most of the cases we use dry pressure test because of its simple operation. It takes a couple of minutes to get the job done.

 

How Wet Pressure Testers Work

1. Preparation: The watch is placed on a hook inside the cylinder, and the cylinder is filled with distilled water.
2. Pressurization: The lid is tightened and air pressure is pumped into the chamber to simulate a certain depth (e.g., 3-5 bar).
3. Soak Time: The watch stays in the pressurized environment for about 1 minute. If a leak exists, air forces its way into the watch.
4. Release & Observation: The operator releases the pressure and immediately submerges the watch into the water.
5. Leak Detection: If the watch is not watertight, the air that entered earlier will escape, creating a visible stream of bubbles. 

 

How Dry Pressure Testers Work (Vacuum Testing)

• Air Testing: Known as a dry tester, this method uses a sealed chamber with air instead of water.
• Deformation Sensor: A sensitive sensor rests on the watch crystal. The machine creates a vacuum to pull air out or pressure to push it in.
• Measurement: The sensor measures the microscopic expansion or contraction of the watch case. If the case does not change shape, the machine knows the air has leaked inside, signaling a broken seal. 

 

Advantages

• Safety: Dry tests ensure the watch does not get wet during testing.
• Accuracy: Wet tests are superior for verifying that the watch holds up to specific pressures.
• Safety Check: This is crucial after any battery change or service to ensure the gaskets are properly seated. 

 

If we want to ensure where the leakage is. Most professional watchmakers use a combination of both tests to ensure the integrity of the watch, often looking for leaks through bubbles (wet) or by monitoring for pressure drops within the testing chamber (dry). 

 

Water test for your watch, normally we have wet test and dry pressure test, in most of the cases we use dry pressure test because of its simple operation. It takes a couple of minutes to get the job done.

 

How Wet Pressure Testers Work

1. Preparation: The watch is placed on a hook inside the cylinder, and the cylinder is filled with distilled water.
2. Pressurization: The lid is tightened and air pressure is pumped into the chamber to simulate a certain depth (e.g., 3-5 bar).
3. Soak Time: The watch stays in the pressurized environment for about 1 minute. If a leak exists, air forces its way into the watch.
4. Release & Observation: The operator releases the pressure and immediately submerges the watch into the water.
5. Leak Detection: If the watch is not watertight, the air that entered earlier will escape, creating a visible stream of bubbles. 

 

How Dry Pressure Testers Work (Vacuum Testing)

• Air Testing: Known as a dry tester, this method uses a sealed chamber with air instead of water.
• Deformation Sensor: A sensitive sensor rests on the watch crystal. The machine creates a vacuum to pull air out or pressure to push it in.
• Measurement: The sensor measures the microscopic expansion or contraction of the watch case. If the case does not change shape, the machine knows the air has leaked inside, signaling a broken seal. 

 

Advantages

• Safety: Dry tests ensure the watch does not get wet during testing.
• Accuracy: Wet tests are superior for verifying that the watch holds up to specific pressures.
• Safety Check: This is crucial after any battery change or service to ensure the gaskets are properly seated. 

 

If we want to ensure where the leakage is. Most professional watchmakers use a combination of both tests to ensure the integrity of the watch, often looking for leaks through bubbles (wet) or by monitoring for pressure drops within the testing chamber (dry). 

Paul Ip