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The IMI Group offers its expertise to support you in your projects

Since 2016, STETTLER SAPPHIRE has joined the IMI Group, an industrial, family-owned and independent group with the same values and a common vision.

The Group’s strength lies in the synergy that enables its companies, all of which specialise in watch components and advanced applications, to combine their know-how.

With CHEVAL FRÈRES, known for its watch winding crowns and pushers, and HARDEX, its ceramic department, Stettler Sapphire shares industry expertise in hard materials.

This momentum is strengthening our position as the leading supplier of synthetic sapphire components.

The IMI Group's subsidiaries

With 5 production sites in Switzerland, France, Portugal and Mauritius, our 800 employees use their recognised skills in watchmaking to provide technological solutions in the fields of jewellery, luxury accessories, aeronautics, medical and electronics.


STETTLER SAPPHIRE has been operating in Mauritius since 1989 through the STETTLER MAURITIUS site for the production of sapphire parts and has about 250 employees.

Thanks to this industrial location, attractively priced products can be offered.

In accordance with the Swiss Made Ordinance, STETTLER SAPPHIRE can meet all sectoral requirements.



Established in Portugal for more than 30 years, the company currently employs 130 people and entrusts its commercial representation to STETTLER SAPPHIRE.

CIMD is one of the largest manufacturers of watch stones in the high-end market.