Compagnie des Montres Longines Francillon S.A., or just Longines, is a Swiss luxury watchmaker based in Saint-Imier, Switzerland. Founded by Auguste Agassiz in 1832, the company has actually been a subsidiary of the Swiss Swatch Team since 1983. Its winged shapely logo, which was signed up in 1889, is the earliest unmodified yet still active signed up trademark.