Astronomic Blue: Constructing the Tantalum case

The case of the Astronomic Blue is crafted from Tantalum, a metal that F.P.Journe reserves exclusively for its Only Watch entries and the Chronomètre Bleu. It takes the case-maker five times longer to make a Tantalum case than a Platinum case, during which over 70 different toolings will be required over a dedicated and long process. As a result, the number of components that make up the case remains unique and unshared with other metals, making this Tantalum case distinctive in both its aesthetics and its construction. The case is manufactured by F.P.Journe's own case-making atelier, "Les Boîtiers de Genève."