16Pcs Watch Crystal Glass Lens 21Mm Single Dome Round Glass Watch Face Crystal

Diameter: 21mm / 0.83" (tolerance is ±0.05mm.) Edge Thickness: 1.7mm / 0.07" Type: Single Dome Round Material: Optical Glass Package Included: 16pcs x Watch Crystal Glass Lens Descriptions: The watch crystal lens is made of great optical glass, which is durable, has a long service life, and is scratch-resistant and corrosion-resistant. This glass lens is crystal clear, high transparency, providing clear dial visibility, ensuring accuracy without distortion. Watch glasses adopt an single dome (curved) design with rounded edges and a smooth surface, which adds a certain magnifying effect to the watch and minimizes glare and reflection. Replacement parts are made to replace the watch crystals for the watch. Widely used in luxury watches, sports watches, dive watches and fashion watches. Easy to install and replace, broken ones can be easily replaced. Very suitable for watch repairers to repair their watches. Clean the glass lens with a soft, lint-free cloth. Tips: The lens diameter tolerance is ±0.05mm, please use a caliper to measure the diameter/thickness before purchasing. Never use low-precision tools such as soft rulers, rulers, or measuring software to measure. The marked size does not include the waterproof ring.