28 Pcs O Ring Watch Gasket, Waterproof Rubber Sealing Ring Kit, Watch Parts Back Replacement O Rings, Silicone Watches Back Cover Set for Watches Repair (9 Types, 13-40mm Diameter)

Easy Application: for watchmakers and tasks, these O gaskets are simple to fasten and provide reliable sealing. They offer excellent resistance to oil, water,, and tearing, ensuring hassle-free installation and dependable in various conditions.
Versatile Sizing: The sealing back cover includes 28 pieces across 9 unspecified sizes, accommodating diameters from 13mm to 40mm. This variety makes it suitable for different models, providing flexibility and convenience for any or maintenance job.
Perfect Compatibility: These seal O gasket serve as an excellent alternative to original back cover seals. Their flexibility ensures a snug fit, matching perfectly with your for reliable. for professionals seeking dependable, sealing.
Durable Material: Crafted from high-quality, these black kit are both flexible and long-lasting. Built to withstand wear and tear, they are perfect for repeated use in and maintenance, offering lasting reliability.
Effective Sealing: Designed to be perfectly installed on back cases, these O gaskets effectively prevent water and contaminants from entering. They help maintain the integrity and longevity of your, ensuring it stays protected in various environments.