Watch jewels
Industrial stones

The main purpose of watch jewels is to minimise the metal’s friction on the jewel. By withstanding relatively high pressures, in the short term they help avoid the kind of jamming that would normally occur between two metal parts.

Since its foundation, the company has supplied jewels to some of the most prestigious watch manufacturers, enabling it to acquire the know-how from which it benefits today in other sectors.

Materials and properties

Monocrystalline sapphire has a unique combination of physical, mechanical and chemical properties that give it an extremely wide range of applications: high mechanical strength, high thermal stability, high optical transmission in the ultraviolet, visible and infrared range, very high resistance to abrasion, chemical inertia, zero porosity, very high insulation, the greatest hardness after diamond.

Apply to


support jewel «PA»

flat olive jewel «GO»

domed jewel «B»

domed olive jewel «BO»

flat jewel with two recesses «G2C»

flat olive jewel with two recesses «G2CO»

semi-flat jewel «MG»

semi-flat olive jewel «MGO»

domed semi-flat jewel «MGB»

domed olive semi-flat jewel «MGBO»

flat jewel «G»

olive support jewel «PAO»

domed olive support jewel «PABO»

support jewel with polished ribbon «PARP»

domed support jewel with polished ribbon «PABRP»

support jewel domed on both sides with polished ribbon «PAB2XRP»

support jewel domed on both sides «PAB2X»

endstone «CP»

domed endstone «CPB»

endstone domed on both sides «CP2B»

domed endstone with off-centre recess «CPBCD»

recess + domed «CPCB»

pin «GOU»

flat jewel with cone-shaped recess «GC»