To produce this extremely complex design, is required a blend of technology, experience, and craftsmanship that only our Italian artisans possess. The instrument is composed of just 12 components (each designed, machined, and finished in-house), the writing unit (supplied), and 10 O-rings to ensure maximum safety. The construction reveals a protective outer shell that houses the instrument itself. We use the highest-quality materials to ensure beauty and durability. Each Calibro-8 is a unique collector's item, which is why it is produced in a limited and numbered series. In addition, a selection of the highest-quality nibs to ensure an exceptional writing experience.