More Particularly, “if not designed from the workshop, anything was built within an hour or so’s generate from Stamford”. 6 miles, or 55.seven km) at the end of a six months’ voyage. (The geographical mile is defined as 1 moment of arc along the Earth’s equator; Assess the nautical mile, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/