Frederique Constant, founded in 1988 by Aletta and Peter Stas, is a Swiss watchmaker known for its innovative and high-quality timepieces. The brand is headquartered in Geneva and has introduced several iconic models, including the Heart Beat, Worldtimer, and the first Swiss Horological Smartwatch. They focus on luxury yet accessible watches, with in-house manufacturing and a dedication to precision and craftsmanship. Acquired by Citizen Watch Co. in 2016, the company continues to innovate with new technologies and designs.