Wyler, 1931, 9ct Solid Gold Swiss Cushion Watch with heavy Dennison Case. GWO
Paul and Victor Wyler founded the Paul Wyler & Cie watchmaking factory in Basel in 1924 [1]. In 1941, Frieda Wyler died, and the assets of Paul Wyler & Cie in Basel were transferred to the Fabrique des Montres Wyler in Biel.