Sim­plic­ity through watch­mak­ing elo­quence: this new model re­mains the only watch to de­pict the move­ments of the moon and sun in re­la­tion to the Earth, as well as a map of the tides. In the cen­tre of the dial, the North­ern Hemi­sphere is de­picted as seen from above the North Pole. Six o’clock in Lon­don rep­re­sents the Green­wich merid­ian, mark­ing Green­wich Mean Time. Three con­cen­tric discs turn around this fixed map of the world. The out­er­most cir­cle fea­tures a sym­bol rep­re­sent­ing the sun. This Th so­lar disc, which com­pletes one rev­o­lut revo­lu­tion in 24 hours, also sweeps over a dis­play di of 24 time zones and is equipped with a day/night in­di­ca­tor. Th­ese mark­ings con­trol the World­timer f func­tion, al­low­ing the wearer to si­mul­ta­ne­ously sim dis­play the time in th the 24 cities in­scribed on the in­ter­nal inte flange. As for the moon, moo this ap­pears on a lower or­bit. Two discs work to­gether to here: on top, the th first func­tions as a cir­cu­lar ci win­dow show­ing th the po­si­tion of the Earth’s satelli satel­lite; be­low, the sec­ond disc, in gold, shows the chang­ing phases of the moon. By sep­a­ratin sep­a­rat­ing this unique dis­play into two ro­tati ro­tat­ing parts, Ulysse Nardin has ac­com­plis ac­com­plished such a high level of pre­ci­sion tha that the time lag for each lu­nar month is ju just 5.7 sec­onds per day, or one day in 40 years.

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