Philippe Dufour, AHCI (born 1948) is a Swiss-born watchmaker from Le Sentier, Vallée de Joux.[1] He is regarded as a master of modern watchmaking, and his watches are referred as among the best ever made. He finishes all of his watches himself by hand.[2][3][4][5][6][7][8][9] In 1992, Dufour was the first watchmaker to put arguably the most complex of complications in a wristwatch, a Sonnerie.[10] His other two models include Duality and Simplicity.