ROLEX – THE DIVER’S GUIDE
In the 60s, undoubtedly Rolex was the diving watch most wanted and prestigious; having it was a sign of distinction. Considered the success that Rolex obtained during the years, beginning from the manufacture the first Oyster Submariner in 1953, they decided to make a gift to divers, publishing a small booklet of 6 pages with the title "Small guide of diver with self-breathing apparatus". It included a rulebook with valid safety rules, a page with diving signals and, at the end, decompression tables, a version of the French Gers of that period. Nowadays, these tables appear to be incredible because of their allowances; it is sufficient to check times foreseen for a dive at 30 meters and compared them to those indicated in any current dive computer. At that depth, diver could remain for half an hour, to directly ascend to the surface in 1 minute and half, that is at a speed of 20/m/min. Maybe, we now became too prudent!