Girard-Perregaux Planetarium Tri-Axial

The Girard-Perregaux Planetarium Tri-Axial, reference 99290-52-451-BA4A, has a 48 mm pink gold case measuring 18.82 mm thick. A tri-axial tourbillon with a lyre-shaped cage shares the display with a moon phase and Day and Night indication. Manual-winding calibre GP09310-0002 contains 42 jewels and operates at 21,600 vibrations per hour (3 Hz), with a power reserve of 64 hours. Sapphire front glass covers the blue aventurine dial, with two sapphire domes and a side opening revealing the construction. A blue alligator leather strap has a pink gold triple folding clasp. Rated to 30 metres, the case has a sapphire display back revealing arrow-shaped gold bridges and an engraved eagle. A hand-painted titanium terrestrial globe turns once a day.