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Sapphire Windows for Wrist Watches
Single crystal sapphire are ideal for demanding applications and harsh environments because of their extreme surface hardness, high dielectric constant and resistance to common chemical acids and alkalis. Sapphire is the second hardest crystal next to diamond, which offers an excellent scratch resistance. Sapphire crystals glass is high transparency with transmission range at 0.15 to 5.5μm.
 
Hangzhou Shalom EO provides the customized sapphire watch windows, the flat and spherical windows and other special shaping windows are available upon customer’s request.