Planet Earth appears on the dials (or on the back!) of some of the most complicated watches, in order to complete the reading of moon phases or the world’s time zones.
The Richard Lange Perpetual Calendar “Terraluna” combines precision, inventiveness, and design competence. It features an orbital moon-phase display, a perpetual calendar with the Lange outsize date, a power-reserve of 14 days, and a constant-force escapement. The movement side presents an innovative and useful orbital moon-phase display that depicts the constellation of the earth, moon, and sun.
The “Rotonde de Cartier Earth and Moon” watch offers an original combination of three complications: flying tourbillon, double time zone and moon phase on demand. Against the backdrop of a lapis-lazuli dial and three-dimensional Roman numerals, the phases of the moon are indicated in an original manner by a disc symbolising the moon that moves beneath the tourbillon.
The Duomètre Unique Travel Time, this year introduced in pink gold, capitalises on the “Dual Wing” concept, thus avoiding any loss of precision thanks to the two separate watch mechanisms connected by a shared regulating organ. It displays the reference time together with the time in a second time zone, indicated digitally thanks to a jumping hour disc with the minutes indicated by a hand. A globe at 6 o’clock shows the time zones of the planet with a subtle day/night indicator. This is the first world-time watch enabling to-the-minute adjustment of the second time zone.