Nivarox
Nivarox (full business name Nivarox - FAR SA) is a Swiss company formed by a merger in 1984 between Nivarox SA and Fabriques d'Assortiments Réunis (FAR). It is currently owned by the Swatch Group. Nivarox is also the trade name of the metallic alloy from which its products are fabricated. It's notable property is that its coefficient of elasticity is remarkably constant with temperature. Nivarox is most famous for producing hairsprings which are attached to the balance wheel inside a mechanical watch movement, as well as mainsprings which provide the motive power for the watch.