Grand Lange 1 Moon Phase - A Lange & Sohne
99.998 PER CENT PRECISION
The LANGE 1 is the icon of the Saxon manufactory. Hardly any timepiece won more awards in the past decades. How much time elapses from new moon to new moon? The accurate calculation of the so-called lunation is one of the most complex issues of general lunar theory. Indeed, it varies and over a decade can exhibit a difference of more than 13 hours. On average, a lunation lasts 29 days, 12 hours, 44 minutes and 3 seconds. Lange’s watchmakers wanted to reproduce this duration as accurately as possible.