Foire de Bâle 1966 Photos à plat 1 à 30 Foire de Bâle 1966 BF 017 — 304293
Swiss Watch Fair 1966 BF 17 A new, highly efficient watch for underwater use. It fully waterproof, all-steel case is guaranteed to a pressure of 20 atmospheres (600 feet), with a turning bezel for elapsed time readings. The dial carries a decompression table enabling the diver to calculate with ease the various stages of his return to the surface. (ONSA)