Tenor-Dorly

European Watch Clock and Jewellery Fair 1981 BF 207
An innovation in “skeleton” type wristwatches - this model’s engraved, open-worked movement gives the impression of being suspended inside a specially designed case made up of two sapphire crystals joined by a metal frame fitted with an O-ring providing perfect water-resistance to a depth of 50 m. (TENOR-DORLY)