The core activity of Olifer Sertissage is sertissage, which involves joining metal parts using mechanical or traditional methods, particularly for the watch, medical and technology industries. The company offers specialized services such as sertissage, engraving, stamping and other processing techniques for various materials like gold, silver, steel and leather. Furthermore, the company also develops and manufactures special machines, such as a diamond counting and calibrating machine, to improve efficiency and precision in the processing of precious stones.