Custom Sapphire Watch Crystal Glass – Factory Direct High Hardness Transparent Optical Glass
- Sapphire hardness: 9 Mohs – second only to diamond
- Superior transparency – high optical transmission
- Scratch-resistant, wear-resistant, and temperature-resistant
- Smooth edge polishing – no sharp corners, no scratches
- Available in AR coating, color coatings (blue, green, red, clear)
- Ideal for watch factories, repair shops, designers, and collectors
Dongqiao Optics is a professional manufacturer of high-quality sapphire watch glass, offering custom shapes, sizes, and coatings for wristwatches. With over 15 years of precision optics experience and full in-house production, we guarantee premium quality with competitive factory-direct pricing — even for small quantity orders.
We support custom replacement solutions for popular watch brands and welcome OEM/ODM orders.
Compatible Styles (Examples):
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Double dome / single dome
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Flat round crystal
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Cylinder edge / cross dome
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Box-type or engraved sapphire
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Custom cut-outs / rim / bridge designs
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Replacement glass for Seiko, Casio, Orient, and other brands (No trademarks)
Customization Service:
Send us your drawing or idea—we will help you create custom sapphire glass based on your specific design, shape, and optical needs.
Packaging & Delivery:
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Secure anti-scratch packaging
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Delivery in 3–8 working days
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Worldwide express shipping available
General Specification
| Specification | Details |
| Material | Sapphire Glass / K1 / BK7 / Mineral Crystal |
| Size | 30–50 mm standard or fully customized (drawings accepted) |
| Shapes Available | Flat, Single Dome, Double Dome, Box Type, Cylinder, Turtle Back, etc. |
| Edge Finish | Smooth polished, beveled edge or custom treatment |
| Coating Options | AR-Coating (Anti-Reflective), Colored (Blue, Red, Green, Clear) |
| Printing | Laser Engraving / Silk Screen (OEM Available) |
| Hardness | 9H (HV1800–HV2200) |
| Optical Quality | High transmission, no distortion |
