Jacob & Co., for instance, has selected this week for the debut of his newest Astronomia Flawless watch. Based on the well-known Astronomia Gravitational Triple Axis Tourbillon watch with sun, moon and Earth globes, the newest piece is fully updated with a sapphire case for transparent viewing from all sides of the complicated movement. In fact, the Astronomia Flawless features a monobloc sapphire case that consists of the case (case band and lugs as a solid piece), a dome and a caseback. Additionally the watch boasts a sapphire barrel bridge in the movement, a blue sapphire dial and a sapphire buckle on the blue strap. The original case of this watch had metal edges and sides, while the new case is a monobloc of totally transparent sapphire.

Source: Forbes January 15, 2017 18:36 UTC