At the heart of this Chronomat B01 is a self-winding mechanical movement powering a full chronograph with 1/4-second, 30-minute, and 12-hour counters, along with a date display at 6 o'clock. The green dial is fitted with luminescent index hour markers and luminescent silver-tone hands, all shielded behind a cambered sapphire crystal that is glareproofed on both sides.
The round 42mm stainless steel case features a unidirectional ratcheted rotating bezel and delivers water resistance to 200 meters / 660 feet. A green rubber strap secures the watch via a folding clasp, giving the piece a cohesive, sport-forward look that carries through every detail.
This example comes complete with its original box and papers, reference AB0134101L2S1, making it a well-documented example of one of Breitling's core chronograph references.
