The term “tool watch” can be kinda vague with some brands, but not with Breitling. The Swiss watchmaker’s best-known collections exhibit purpose-built designs that, even if we don’t know exactly how they work, clearly perform a task beyond displaying the time.
There is no better or more famous example than the Navitimer, a wristwatch equipped with a chronograph and slide rule to assist pilots in making mid-air calculations.

While specifically designed for aviation, the complex timekeeping tool has a long history of overlapping into the world of auto racing. That heritage has been tapped for Brelitling’s partnership with the Aston Martin Aramco Formula One Racing Team, which debuts with the 2026-2027 season.
Along with Breitling branding on the team cars and gear, the partnership is celebrated with the limited-edition Navitimer B01 Chronograph Aston Martin Aramco Formula One Team. This mouthful of a watch blends design elements from the 1950s — the decade when the Navitimer was invented, and Aston Martin first competed in Formula One — with modern materials.

The case and dial maintain much of Navitimer’s heritage appearance, including the three-tiered slide rule bezel, winged-shield logo, and snailed subdials — comprising a 30-minute counter at 3:00, a 12-hour counter at 6:00 and a small seconds at 9:00.





