1. Sapphire watch glass 2. Material: clear glass 3. OEM & ODM 4. size: 44mm x 1.5mm

Mydarb - sapphire watch glass

Sapphire  Crystal - the most hardest oxide crystal,which is the basic crystal morphology of alumina (Al2O3) . It posseses the characters of high strength, high hardness, high heat-resistance, wearability, corrosion resistance and light transmittance performance,which is the preferred watch glass material for the luxury watches.

Mydarb - sapphire watch glass

Mydarb - sapphire glass round