(306050)

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Foire de Bâle 1971 Styling mannequin et Technique mannequin, Electronique Foire de Bâle 1971 BF 251 — 306050
Swiss Watch Fair 1971 BF 251 A man' s watch with water-resistant tested to 20 atmospheres, corresponding to a depth of 200 metres. The specially treated scratchprotected case has a hardness of 1000 Vickers and the tempered mineral glass is extremely resistant. Automatic movement with calendar and fast date-setting mechanism. Turning bezel. (LOUIS ROSSEL-Home Watch)