ZENITH Solidifies its Intercontinental reputation since the foremost manufacturer of precision chronometers and instruments across a lot of domains. 6 miles, or 55.seven km) at the end of a six weeks’ voyage. (The geographical mile is described as 1 moment of arc together the Earth’s equator; compare the nautical mile, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/