It was worn by commercial and military divers and tested by ocean explorers in the Red Sea, the North Atlantic and under the frozen Arctic ice pack.
Over 50 years on, many of those original watches are still fully serviceable and ocean ready. One or two may well be on the wrists of divers somewhere right now. However, given the majority of scuba divers never go below 40m (131ft) and even the most experienced saturation divers never exceed 300m (984ft), few if any of those ‘Caribbean 1000s’ have ever been within 700m of their limit.