|Type:||Watches For Parts||Material:||Sapphire|
|Shape:||Custom Shape||Surface Treatment:||Polished|
|Service:||OEM ODM||Surface Quality:||80/50,60/40,40/20|
|Usage:||Sapphire Glass For Watch||Coating:||AR,AF-Coating|
synthetic sapphire glass,
scratch resistant watch crystal
9H High Performance Flat Watch Glass Ground And Beveled Edge Finish
Ground and beveled
λ/4 @ 633 nm
≤3 arc min (≤0.9 mrad)
>80% of central diameter
1370 kg mm-2
3.4 x 1011 N m-2
22 W m-1 K-1
Thermal expansion coefficient
8.4 x 10-6 K-1
About sapphire glass
SAPPHIRE CRYSTAL (sapphire glass) generally refers to synthetic sapphire, generally used in the manufacture of the watch glass.
It is resistant to wear with tungsten titanium alloys and high-tech ceramics. but sapphire materials can wear resistance and
withstand the strong impact, and some of the same or higher hardness of the material (e.g., millstone, sandpaper, nail, granite,
concrete wall, and floor, etc.) so sapphire glass are not likely to scratch the surface of these materials.
Our company has a complete ,standardized and scientific quality management system.Characteristic lead the future. Characteristic products and service is the foundation of our cooperation,and we look forward to create brilliant achievements together with you.