Chronomat B01 42

The Chronomat B01 42 in reference AB0134101C1A1 presents the storied Chronomat line in a versatile 42 mm stainless steel case, paired with a blue dial whose tone-on-tone subdials lend it a refined, monochromatic depth. At its heart sits Breitling Calibre 01, the manufacture's fully in-house chronograph movement, COSC-certified for chronometric precision. The result is a sports chronograph that balances legibility, technical substance, and contemporary aesthetics.

The Chronomat name traces its roots to the 1940s and was dramatically revived in the 1980s as a pilot-and-professional's tool watch, going on to become one of Breitling's most enduring references. The B01 42 generation, introduced around 2020, refined the silhouette with a slightly more wearable 42 mm diameter while retaining the line's signature rouleaux bracelet-compatible lugs and rider tabs on the bezel. The introduction of Calibre 01 across the Chronomat family marked a significant milestone, replacing outsourced ebauches with a movement designed, manufactured, and decorated entirely in-house. Collectors regard the B01 42 as the definitive modern expression of the Chronomat, combining heritage aesthetics with genuine manufacture credentials.