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

• Sapphire crystal watch parts
• 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.
• 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.