Eight years after the first Moonstruck made its mark, the Moonstruck Worldtimer remains the only astronomical wristwatch with the bright part of the moon always facing the sun, as happens in real life. Innovative yet functional, the Moonstruck Worldtimer also include an easy-to-read map of the tides, date indicator, instant time zone adjuster, and worldtimer complication. Limited to 100 pieces, this model is available in platinum ($95,000) and rose gold ($75,000).
In the center 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 solar disc, which completes one revolution in 24 hours, also sweeps over a display of 24 time zones and is equipped with a day/night indicator. These markings control the Worldtimer function, allowing the wearer to simultaneously display the time in the 24 cities inscribed on the internal flange. As for the moon, this appears on a lower orbit. Two discs work together here: on top, the first functions as a circular window showing the position of the Earth’s satellite; below, the second disc, in gold, shows the changing phases of the moon. By separating this unique display into two rotating parts, Ulysse Nardin has accomplished such a high level of precision that the time lag for each lunar month is just 5.7 seconds per day, or one day in 40 years.
The automatic mechanical UN-106 caliber employs silicium components and is entirely designed and produced in-house. Push
buttons at 8 and 10 o’clock enable the wearer to quickly move the time for ward or backward by one hour.