Fortis “Fortalloy”

European Watch Clock and Jewellery Fair 1976 BF 205
Durable protection for a watch is a mark of quality. The case of these
two Fortis models, one for men, the other for ladies, features a “Fortalloy” heavy metal cladding, guaranteed scratchproof and un- breakable. Applied without structural modification to the case metal, it provides a permanent platinum-like sheen and protects the case against scratching, wearing and oxidation. High-frequency (28,800 v.p.h.) selfwinding movements. Water-resistance guaranteed to 5 atm. Calendar. (FORTIS “Fortalloy”)