Sapphire glass have excellent mechanical strength and hardness. With sapphire having superb thermal and chemical resistance and being scratch resistant, sapphire is a perfect choice for watch applications.

• Sapphire crystal watch face
• With anti-impact and anti-scratch features.
• With high electrical resistance.
• With high corrosion resistance. 
• Features a high melting temperature of 2030 °C.
• With a high hardness of 9 Mohs, which is second to diamond.
• Coating
• Layers: 3~10 layers
• Single side or both side
• Hard coating
• Electroplating / Metallization
• Color: Black, Golden, Pink Golden, Blue...
• Welcome to ask/inquire some details/another of any color and effect of coating and metallization.