WATCHES & TIMEPIECES
The ring-shaped month display is complemented with the Lange outsize date , a retrograde day-of-week display , and a leapyear indication . The instantaneously advancing calendar displays are always crisply legible . They can be advanced collectively or individually with correctors . Once properly set , the mechanism is programmed to reliably indicate each month change until the year 2100 .
Moon phase with day / night indicator
The perpetual calendar is the central complication of the LANGE 1 PERPETUAL CALENDAR , but not the only one . The watch additionally features a moon-phase display with an integrated day / night indicator .
The combination of the moon-phase display with a day / night indicator has two layers . It consists of a solid-gold celestial disc with a blue gradation . It completes one full revolution about its own axis every 24 hours . Against this background , the moon – either in white or pink gold – performs its synodic orbit in 29 days , 12 hours , 44 minutes , and three seconds with such precision that it takes 122.6 years before a correction by one day is needed . With the 2016 debut of the combined display in the LANGE 1 MOON PHASE , the moon appears on a monochrome light blue canopy during the day and on a dark blue starry sky at night .
Two exquisite colour variations
The LANGE 1 PERPETUAL CALENDAR has a diameter or 41.9 millimetres and a height of 12.1 millimetres . It is available in two versions . It comes in pink gold with a grey solid-silver dial and – in a 150-watch limited edition – in white gold with a solid pink-gold dial . The latter material combination has been presented by A . Lange & Söhne initially in 2019 , in the DATOGRAPH PERPETUAL TOURBILLON , also a limited-edition model . Colour-coordinated hands and appliques in pink gold or rhodiumed gold – luminous in the pink-gold version – round off the harmonious design . The white-gold version has a dark-brown leather strap , the pink-gold model comes with a red-brown leather strap .
Issue 47 2021 The Art of Luxury
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