The Fortis Marinemaster 8001 is a vintage diving chronograph from the early 1970s, highly sought after by collectors for its "funky" design and prestigious in-house movement. Key Features Elite Movement: It is powered by the legendary Valjoux 72 manual-winding caliber. This is the same movement used in high-end chronographs of the era, such as the famous Rolex Daytona "Paul Newman." Distinctive Design: It features an "exotic" dial with three harmonious sub-dials, often accented with vibrant colors (blue, orange, or yellow) typical of the 1970s. Dimensions and Case: The steel case has a diameter of 39 mm and a lug-to-lug width of 20 mm, making it highly versatile for various strap styles. Water Resistance: Although it is a chronograph, it was certified at the time for water resistance up to 200 meters.