The watch case comes in a transparent design is made of sapphire crystal which has a hardness that ranks nine out of ten in the Mohs scale, making it the hardest material second to diamond. It is also designed to be anti-impact, anti-scratch. This watch case flaunts a neat and clean appearance and makes an excellent component for watches. 

• Material: sapphire crystal.
• High luster and excellent hardness.
• Transparent design.
• 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.