The watch glass is made of sapphire crystal and has high luster and excellent hardness. It comes in a transparent design and has date window on the exterior.  This watch glass flaunts a neat and clean appearance and makes an excellent component for high end watches.

• Material: sapphire crystal.
• With anti-impact and anti-scratch features.
• With high electrical resistance.
• With high corrosion resistance. 
• With a high hardness of 9 Mohs, which is second to diamond.
• Features great thermal stability.
• High luster and excellent hardness.
• Transparent design.
• With date window on the exterior
• Neat and clean appearance.
• High quality.
• Excellent component for high end watches.
• Vickers hardness: 2000 - 2500 daN/mm2.
• Optical properties: 1.760.
• Available in customized designs.
• Welcome inquiry for any drawing and details.