Place of Origin
Shanghai, China
Model Number
sapphire watch case
Material
100% Pure Synthetic Sapphire
Transparency
>95% Transparency in Visible Spectrum
Refractive Index
1.762 to 1.770
Case Diameter
Available in 40mm, 42mm, 44mm
Case Thickness
Standard 10mm (customizable upon request)
Water Resistance
Up to 500 meters
Scratch Resistance
Nearly as hard as diamond; highly scratch-resistant
Temperature Tolerance
Operates effectively from -40°C to 400°C
Chemical Resistance
Resistant to common acids and alkalis