Check the listing for details. O-Ring Watch Gaskets Replacement Kit 0.5mm Watch Back Rubber Seal Washers. Condition: New with tags. Listed at 12.95 USD. 1. Crafted from premium rubber, these O-Ring watch gaskets are characterized by their flexibility, wear resistance, and durability, ensuring a long service life and practicality.2. These rubber O-Ring gaskets possess waterproof and elastic properties, ensuring they are easy to install and remove. They offer a superior seal that safeguards the watch's interior against dust and water ingress.3. Suitable for professional watchmakers and repair technicians, this waterproof watch gasket set is essential for maintaining the integrity and longevity of watches during repair and servicing.4. Please ensure the watch back gasket size matches your watch model before installation. Improper size may affect the sealing performance.