High hardness sapphire material.
1.5mm Sapphire Crystal 18-45mm Flat Round Watch Glass Mirror Generic Lens Parts
1.5mm Flat Sapphire Crystal 18-45mm Universal Round Mechanical Watch Glass
CT025 - Flat Sapphire Crystal (2 Designs) - SKX007 SRPD
CT076 - Flat Sapphire Crystal - SRP Turtle +
Generic Sapphire Crystal (25.70×0.67)mm fit AUDEMARS PIGUET Flat Hexagon 12 side
CT110 - Flat Sapphire Crystal - Samurai
