Girard-Perregaux Planetarium Tri-Axial Earth to Sky Edition

The Girard-Perregaux Planetarium Tri-Axial Earth to Sky Edition, reference 99290-53-653-BA6A, has a white gold case measuring 48 mm across and 18.82 mm thick. A tri-axial tourbillon shares the display with a moon phase and Day and Night indication. Manual-winding calibre GP09310-1038 contains 42 jewels and runs at 21,600 vibrations per hour (3 Hz), with a power reserve of 64 hours. Sapphire front glass covers the black aventurine dial with a hand-painted terrestrial globe that turns once a day. A black alligator leather strap has a white gold triple folding clasp. The case is rated to 30 metres, with two sapphire domes, a side opening and a sapphire display back. Arrow-shaped gold bridges and an engraved eagle decorate the movement's rear.