A. Lange & Söhne introduces its Richard Lange Perpetual Calendar ‘Terraluna’ watch.
A. Lange & Söhne’s new ‘Terraluna’ watch combines benchmark precision, inteventiveness and design competence. Featuring an orbital moon-phase display, a perpetual calendar with the Lange outsize date, a power-reserve of 14 days, and a constant-force escapement, this extraordinary time-keeping instrument represents the pinnacle of Saxon watchmaking artistry.
The ichard Lange Perpetual Calendar ‘Terraluna’ is equally impressive on both sides. On the dial side of the 45.5-millimetre pink- or white-gold case, the watch stands out with the regulator layout of scientific precision watches. The movement side presents an innovative and useful orbital moon-phase display that depicts the constellation of the earth, moon, and sun.
The large minute circle is at the top of the dial of the Richard Lange Perpetual Calendar ‘Terraluna’. The smaller dials for the hours and seconds are beneath it, shifted toward the right and left. As was already the case with the Richard Lange Tourbillon “Pour le Mérite” presented in 2011, this dial design was inspired by a great historic role model: Johann Heinrich Seyffert’s 1807 regulator from the world-famous timepiece collection of the Mathematics and Physics Salon. With his ingenious designs, Seyffert helped transform Dresden into a hub of precision horology in the early 19th century.
A great advantage in precision pocket watches, the regulator format was appreciated not only by time-keeping services and observatories, but also by watchmaking manufactories where it was used for synchronising new timepieces. This is because it provided an accurate display of the minutes and seconds.
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