
Ref. UB01821A1B1U1 · Diver
Breitling
Breitling's flagship in-house integrated chronograph movement featuring a column-wheel mechanism and vertical clutch for smooth chronograph operation. The 70-hour power reserve and COSC certification make it one of the best value propositions in manufacture chronograph calibers. Its modular design allows for various dial configurations across the Navitimer, Chronomat, and Premier collections.
AI-detected from the product image
Avenger collection · 19 watches












The connection engine
The community take
Owners widely praise the Breitling Avenger B01 Chronograph for its in-house B01 movement, noting its smooth chronograph action and COSC-certified accuracy. Reviewers and owners alike describe the updated design as more streamlined and handsome, with some appreciating the refined look and matte dials. However, some owners feel the latest styling has lost its rugged tool-watch DNA and that the watch can feel bulky or too thick for smaller wrists, despite its updated proportions. The 42mm case size is a concrete specification. Overall, owners and reviewers rate the Breitling Avenger B01 Chronograph highly for its robust in-house B01 movement and modernized, streamlined design.
On real wrists
No shots yet. Show how it wears.
The paper trail
The discussion