After the production at the Lange & Sohne factory ceased for more than 40 years due to World War II, the LANGE 1 was the first watch introduced by the German master watchmaker when the brand was relaunched in 1990. Since its introduction, this model has been one of the most widely acclaimed and iconic pieces presented by the highly revered manufacturer.
The Grand Lange 1 "Luna Mundi" was presented as a set of two watches displaying the accurate waxing and waning of the moon as seen on both sides of the equator.
The Grand Lange 1 "Ursa Major" model in white gold depicts the moonphases for the Northern Hemisphere while the Grand Lange 1 "Southern Cross" in pink gold displays the moonphases for the Southern Hemisphere. Both moons change phases continuously and not just in sudden increments once or twice a day as in conventional watches. In addition, the mechanism was computed precisely so that the displays deviate from the synodic lunar orbit by only one day in 122.6 years.
These watches were available exclusively in sets of two and the edition was limited to 101 sets, introduced in 2003, they were sold out by 2004. The current examples are number 33.
The "Luna Mundi" showcases many iconic and distinctive features including the easy-to-read oversized date apertures and the asymmetric dial display which were used in many of the brand's future creations. The movement is characteristic of the finest quality production with a double barrel for a power reserve of three days, hand engraved balance cock with swan-neck precision regulator, gold chatons and hand-blued screws.
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