Frederique Constant is a Swiss watch brand founded in 1988 by Aletta and Peter Stas.

Its range includes Classics and Highlife watches, and the brand emphasizes more accessible pricing for Swiss luxury watchmaking. Introduced in 1994, its signature Heart Beat design features a dial aperture revealing the mechanical movement. The brand launched its first entirely in-house developed and assembled calibre, the FC-910, in 2004, followed by its first Tourbillon Manufacture limited edition in 2008.