The featured watch case is made of sapphire crystal and has high luster and excellent hardness. It comes in a transparent design and has Arabic numeral hour markers on the exterior.  This watch case flaunts a neat and clean appearance and makes an excellent component for high end watches.

• Material: sapphire crystal.
• High luster and excellent hardness.
• Transparent design.
• With Arabic numeral hour markers 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.