Jacques Bianchi’s New Combat Diving Watch Is Lightweight and Built for Practicality
The Jacques Bianchi Marseille JB300 Professional is a limited-edition combat-diving watch developed with former US Navy diver Brock Stevens and informed by feedback from military divers. Its 41.5mm forged-carbon case has a Grade 5 titanium inner core, a black DLC-coated titanium bezel, reinforced fixed lugs, and a left-sided crown. The matte black dial uses oversized luminous markers and broad hands, while the bezel’s green and blue lume distinguishes its first 15 minutes from the rest of the scale. The watch is powered by a COSC-certified Soprod P024 automatic movement, rated to -4 to +6 seconds per day, and offers a sapphire crystal and 300 meters of water resistance. Priced at $1,950, production is limited to 500 pieces: 200 for the Unit Watch Program and 300 for public sale. Its specialized design and materials are appealing, though the fixed lugs restrict strap options, and its comfort and durability remain to be assessed firsthand.
Buying Time Analysis: This story matters because the JB300 Professional translates feedback from military divers into practical design choices, including a lightweight forged-carbon case and a two-color bezel for tracking underwater intervals.
