With Blue light AR coating film on the underside. High hardness sapphire material, Moh's hardness: grade 9.
Sapphire Glass Watch Crystal 1.2mm Flat Round Watch Lens 18mm-42mm Mineral Glass
2mm Thick PREMIUM Sapphire Mineral Watch Crystal Glass Flat 23mm - 42mm New
Sapphire Glass Watch Bezels Blue Luminous OD 38mm ID 31.5mm Watch Flat Bezel
1.0-3.0mm Thick Flat Mineral Glass Watch Crystal Watch Glass Diameter 16-60mm
0.8/1.0/1.2/1.5/2.5mm Thick Flat Mineral Glass Watch Crystal Glass Lens 16-60mm
39mm Stainless Steel Sapphire Glass Watch Case Strap For VK63 Quartz Movement
