Breitling B13

Breitling's most widely used chronograph caliber, based on the legendary ETA/Valjoux 7750. COSC-certified chronometer with Breitling-branded rotor. Features the classic 12-6-9 subdial layout with cam-operated chronograph. Versions with both date-only and day-date exist. More serviceable than in-house movements due to widely available parts. Used in Chronomat Evolution, Avenger, Super Avenger, Superocean Chronograph, Colt Chronograph, Navitimer Heritage, and many other models.