The sapphire
Due to its many properties of strength, hardness and transparency, sapphire is suitable for many applications in the watchmaking industry but also in the manufacture of tools.
The Verneuil process
Sapphire production uses a technique based on the "Verneuil" industrial process, which produces drip sapphire from alumina powder melted by the thermal energy of different gases (at a temperature above 2,000°C). The growth of the sapphire ball lasts several hours and its stabilization requires a specific process that lasts several days.
