Baselworld saw the debut of Jacob & Co.’s precious Astronomia Gravitational Triple Axis Tourbillon, with a sapphire case. This impressive tridimensional movement captures the heart of watch-lovers through a mesmerizing ballet of the four satellites in constant motion. The sapphire of the Astronomia Clarity is crystallized using the Kyropoulos method to reach the highest purity. Extreme care and unique tools were specially developed to shape the sapphire.