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This is a generic bezel gasket (O‑ring) designed for the Rolex Sky-Dweller reference 326939, made of durable nylon material. Installed between the rotating bezel and the case, this gasket provides a water‑tight seal and the correct rotational friction, ensuring smooth bezel operation and maintaining the watch’s water resistance. Replacing the original gasket when it becomes aged, hardened, or damaged restores proper bezel seating and water sealing.
Nylon Material – Wear‑resistant, aging‑resistant, and corrosion‑resistant for long‑lasting sealing.
O‑Ring Design – Standard circular cross‑section for uniform sealing and rotational friction.
Designed for Sky-Dweller – Precisely fits the 42mm Oyster case’s Ring Command rotating bezel construction.
Restores Function – Replaces aged gaskets to eliminate bezel looseness or sticking, restoring smooth rotation and water resistance.
Generic Aftermarket – Non‑original but fully compatible with the 326939.
| Parameter | Details |
|---|---|
| Compatible Model | Rolex Sky-Dweller 326939 (42mm Oyster case, 18K white gold) |
| Type | Bezel gasket (O‑ring) |
| Shape | O‑ring |
| Material | Nylon |
| Function | Seals between bezel and case, provides rotational friction |
Replacing aged or damaged bezel gaskets on the Rolex Sky-Dweller 326939.
Restoring water resistance and proper bezel rotation feel during service or maintenance of the Ring Command bezel.
Suitable for the 42mm Oyster case Sky-Dweller line.
1. Is this a genuine Rolex bezel gasket?
No. It is a generic aftermarket replacement, not original, but fully compatible with the 326939.
2. How do I know if the gasket needs replacement?
If the bezel rotates too loosely, feels sticky, or if water or dust ingress is noticed under the bezel, the gasket has likely aged or failed.
3. How do I install it?
Place the gasket flat into the case groove without twisting, then press the bezel back on. Test for smooth rotation.
4. How does nylon compare to rubber?
Nylon has lower compression set and resists hardening over time, making it ideal for precision press‑fit applications. Rolex original bezel gaskets are also often nylon.
5. Is a water resistance test required after installation?
Yes, a water resistance test is recommended to ensure factory‑spec performance (typically 100m).
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