Fabrique d'Ébauches de Fleurier Calibers

Fabrique d'Ébauches de Fleurier (FEF) was a Swiss ébauche manufacturer founded in Fleurier, Val-de-Travers (Canton Neuchâtel). Its origins lie with the Fleurier Watch Co. and a tradition of supplying movements for the Chinese and English export markets; Paul Jéquier formalised the FEF entity around 1894–1902. The factory joined Ébauches SA in 1932. In 1979, FEF was merged into Fabrique d'Horlogerie de Fontainemelon (FHF) along with Peseux, Valjoux, and other Ébauches SA subsidiaries.

The historic Fleurier manufacture facility was acquired by Chopard in 1996, forming the core of Chopard's in-house manufacture capability — a notable example of a former ébauche factory being repurposed for vertical integration by a luxury brand. Vaucher Manufacture Fleurier, also in the same valley, continues to supply movements to prestigious brands including Hermès and Parmigiani. FEF calibres (100-series and beyond) are mid-century Swiss ébauches of standard quality found in many branded watches of the 1950s–1970s.