How can users determine if the gasket is aging?

1. Visual inspection:

Cracks, hardening or discoloration (such as yellowing or whitening) appear on the gasket surface.

Water stains remain in the gap between the crown or the back cover (even after wiping, they keep recurring).

2. Function test:

Submerge the watch in water (for shallow water test, be cautious), and observe if there is water mist inside the watch glass.

Use a professional pressure testing instrument to test the waterproof performance (it is recommended to be operated by the repair point).

How to delay gasket aging and maintain waterproof performance?

1. Regularly replace the gasket

Frequency: It is recommended to replace it once every 2-3 years. For diving watches or high-intensity use watches, it needs to be tested annually.

Selection: Preferentially use original factory parts or certified substitutes to ensure material and size compatibility.

2. Avoid extreme environments

Do not wear the watch when taking a bath, taking a sauna, or engaging in high-temperature work (such as cooking, welding).

After contact with seawater, rinse with clean water and dry to prevent salt residue.

3. Correctly operate the crown

After adjusting the time or date, ensure the crown is fully tightened.

Avoid operating the crown in water (even if the watch has a high waterproof rating).

4. Regular professional maintenance

Send the watch to a professional repair point for waterproof testing and gasket inspection every 1-2 years.

The repair point can verify the waterproof performance through pressure testing and replace the aging components.

Summary: The mechanism by which gasket aging affects waterproof performance

Gasket aging weakens waterproof performance through three mechanisms: material hardening, crack formation, and compression deformation. The degree of its influence is closely related to the watch's waterproof rating, usage environment, and maintenance habits. Users need to delay aging through regular inspections, avoid extreme environments, and operate the crown correctly. When signs of aging are detected, replace the gasket promptly to ensure the long-term waterproof reliability of the watch.