The watch crown gasket seals the stem opening, blocking water, dust and old grease. Indispensable on every waterproof watch. Here you will find the references that fit every stem.

Features

• Exposed gasket: sits in the stem groove, individually replaceable.
• Several diameters covering the majority of crown tubes.
• Material: compression-resistant elastomer.
• Compatible with watchmaker silicone grease.

How to choose

• Measure the groove diameter on the stem with a micrometer.
• Check the inner diameter of the crown tube to validate compression.
• A gasket that is too small leaves the crown loose; a gasket too big makes it stiff.
• Always lubricate with silicone grease before fitting.

See our tutorial replace a crown gasket.

FAQ

How often should the gasket be replaced?

Every 2 to 4 years depending on use, or whenever the crown feels loose or stiff.

Can the gasket be changed without changing the crown?

Yes, on models with an exposed gasket. Crowns with a hidden gasket are swapped as a unit.