F.P.Journe Octa SPORT ALUMINIUM (ARS) Aluminium Black Dial 42MM Calibre 1300.3

The watch shown on the screen is the F.P. Journe Octa Sport Aluminium – Ref. ARS, a technically innovative sports watch that blends high-performance materials with F.P. Journe’s signature mechanical watchmaking.

The Octa Sport Aluminium was designed to be extremely lightweight while maintaining mechanical sophistication. Both the case and bracelet are made from aluminum alloy, which dramatically reduces weight compared to traditional steel or precious-metal sports watches. Despite its lightness, the watch retains a robust and modern appearance, with a 42 mm case and integrated aluminum bracelet featuring subtle rubber inserts for added durability and comfort.

The dial has a clean, modern design with a matte gray finish, large Arabic numerals, and luminous hands and markers for strong readability. A large date display sits at the top of the dial, while the lower portion features a small seconds subdial with a power reserve indicator, giving the watch a balanced and highly functional layout. Red accents on the dial add a sporty contrast to the otherwise monochromatic color scheme.

Inside the watch is the F.P. Journe Calibre 1300.3, an automatic movement constructed from aluminum alloy, which is highly unusual in haute horology. This movement is designed to reduce weight while maintaining durability and efficiency. It is paired with an off-center rotor that helps deliver an impressive power reserve of around 120 hours, one of the longest in its category.