Zenith “Port Royal” - modèle déposé

European Watch Clock and Jewellery Fair 1975 BF 251
Elegant yet ruggedly sporty is this Zenith “Port Royal” model. It offers all the features formerly found only on men’s watches : high frequency (28,800 v.p.h.), quick-change calendar, all-steel case, water-resistance, tempered mineral crystal - and large-link integrated bracelet. (ZENITH “Port Royal” registered model)