Breitling · Family: Chronomat
The Breitling Chronomat B01 42 is a 42mm steel sports chronograph that revives the integrated 'Rouleaux' bracelet from the original 1984 Chronomat, now powered by the in-house, COSC-certified Calibre B01. Cazador has no verified price observations as of July 2026. Its differential: a rotating bezel with 'rider tabs' — side grip tabs designed to be operated even while wearing flight gloves.
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The Chronomat debuted in 1984 as Breitling's first sports chronograph with an integrated bracelet, introduced alongside the Frecce Tricolori, the Italian Air Force's aerobatic display team, and took its name from a rotating bezel fitted with 'rider tabs' — prominent side grip tabs designed to be operated even while wearing flight gloves. Breitling retired the line from catalog by the mid-2000s and relaunched it in 2020 on a fully updated base.
That relaunched Chronomat B01 42 runs Calibre B01, Breitling's first automatic chronograph movement designed and manufactured entirely in-house, originally introduced in 2009 and folded into the Chronomat starting in 2020. Calibre B01 carries COSC chronometer certification and roughly 70 hours of power reserve, built around a column-wheel, vertical-clutch architecture.
The 42mm stainless steel case retains the unidirectional rotating bezel with its fluted 'rider tabs' insert, paired with an integrated bracelet whose rounded links are also nicknamed 'Rouleaux' — a design directly reviving the original 1984 bracelet.
With 100 meters of water resistance and a domed sapphire crystal, the Chronomat B01 42 positions itself as a daily-wear sports chronograph rather than a dedicated dive instrument. As of this fiche, the reference remains in Breitling's current catalog within the Chronomat family relaunched in 2020.
Cazador has no verified price observations for this reference, so we do not publish a market range without sourced data.
It's the first automatic chronograph movement designed and manufactured entirely in-house by Breitling, introduced in 2009, with COSC certification and roughly 70 hours of power reserve.
They're the prominent side grip tabs on the rotating bezel, an original 1984 design meant to let the wearer adjust the bezel even while wearing flight gloves.
It's the integrated bracelet with rounded-profile links that Breitling introduced on the original 1984 Chronomat, revived on the B01 42 relaunched in 2020.
It's rated to 100 meters, enough for daily wear and surface swimming, though it isn't built as a dedicated dive watch.
The original Chronomat launched in 1984; Breitling relaunched the line in 2020 on the in-house Calibre B01, the version this fiche covers.
Yes, the Calibre B01 powering this reference carries COSC certification (Contrôle Officiel Suisse des Chronomètres).