Ulysse Nardin Astrolabium Gallileo Galilei

The Ulysse Nardin Astrolabium Galileo Galilei, reference 999-70, has a 41 mm platinum case and an alligator leather strap. At 13 mm thick, the case has a water-resistance rating of 30 metres. Manual-winding calibre UN-99 has a power reserve of 42 hours and 33 jewels, with a frequency of 28,800 vibrations per hour. The watch is a limited edition of 100 pieces. The miniature astrolabe displays the positions of the Sun, Moon and stars as seen from Earth. Epicyclical gears organise the astronomical display. The dial displays hours and minutes beneath a sapphire crystal.