> Incredibly, the F91W survives its journey to an official 4,950 meters—an astonishing 16,240 feet—and back.<p>Findings.<p>> 4,950 meters under the surface, the pressure is approximately 7,227 pounds per square inch, which is well over three tons pressing on the watch. For context, that’s a Dodge Ram 1500 or a young adult hippopotamus parked on every inch of your F91W. As Americans, we’ll do anything to avoid the metric system, but using scientific terminology, we’re talking about a shitload of pressure.<p>Appreciate the joke.