This glass lens is crystal clear, high transparency,the glass offers exceptional clarity and transparency for easy reading of the dial, and its scratch-resistant design keeps the dial clearly visible, ensuring durability and longevity.
Beveled edges give watch glass lenses a smooth, polished appearance, increase strength and durability, help reduce the possibility of chipping or breaking, and add a unique and distinctive design element that sets them apart from traditional flat-edged glass lenses.
| Material | optical glass,BK7 ,Fused silica, JGS1,JGS2,JGS3,Low iron glass,soda lime glass,borofloat 33(BF33) |
| Diameter | 1-500mm |
| Thickness | 0.1-50mm |
| Diameter Tolerance | ±0.01 mm |
| Thickness Tolerance | ±0.01mm |
| Surface Quality | 80/50,60/40,40/20,20/10 |
| Clear Aperture | >90% |
| parallelism | <3 arcmin |
| Coating | Custom |
| Bevel | 0.1~0.3mm x 45 degree |