Built around Breitling's self-winding mechanical movement, the Chronomat B01 delivers a column wheel chronograph and vertical clutch system that work in concert for smooth engagement and accurate elapsed-time readings. Luminescent index hour markers and luminescent hands ensure legibility in low-light conditions, while the cambered sapphire crystal offers a clear view of the striking black analog dial.
The 42mm round case is paired with a unidirectional rotating bezel featuring gem-setting that brings a refined character to a watch rooted in professional instrument design. A black rubber band secured by a fold clasp keeps the piece comfortable and sport-ready, and water resistance rated to 200 meters / 660 feet underlines its functional credentials.
Reference AB0134721B1S2 is presented with its original box and papers, making it a complete 2025 example for collectors and enthusiasts who want the full ownership experience straight from the outset.
