Pronto Watch Co, Le Noirmont, Suiza

Marca: Pronto flor de lis (1910) - Boyscaph (1900?) - Chieftest (1910) - Dixor (1953) - Forward (1961) - Lesta (1912) - Master (1919) - Masterflex (1954) - Polydate (1954) - Promotion (1959) - Prontex (1933) - Pronto (1943) - Scopic (1900?) - Seaflag (1900?) - Skiff Line (1900?) - Solrex (1937) - Sportal (1937) - Sprinter (1937) - Tropic Master (1900?) - Tropic Star (1900?) - Submersible (1958) - Thinline (1958) - Tropic Safe (1900?) - Vit O Test (1939) - Voxal (1939)

Relojes. Tambien como Leon Maitre & Fils