When it comes to pre-GPS sailing in open water you need an accurate watch to aid in making navigations and when using a sextant to stay on course. In this awesome story from Jason Heaton we learn of Sir Francis Chichester's daring project to sail
link the "Clipper Route" alone. He
link was 66 at the time and the route which was the fastest route around the world before the opening of
link the Panama Canal encircles the globe and crosses great stretches of open water in several oceans.