Both share the same heart — the in-house, COSC-certified Calibre B01 — but with opposite missions: the Chronomat wears the integrated Rouleaux bracelet and rider-tabs bezel of Breitling's historic sport line, while the Navitimer keeps the rotating bezel with circular slide rule, the aviation navigation tool that has given it its name since 1952. Neither has verified market price data in Cazador yet.
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| Breitling Chronomat B01 42 | Breitling Navitimer B01 Chronograph 43 | |
|---|---|---|
| Case diameter | 42 mm | 43 mm |
| Material | Stainless steel | Steel |
| Movement | Calibre B01, in-house, automatic, COSC-certified | In-house Calibre B01, automatic, chronograph, COSC-certified |
| Power reserve | ~70 hours | 70 hours |
| Water resistance | 100 m | 30 m |
| Bezel | Unidirectional, rider-tabs insert | Bidirectional rotating, circular slide rule |
| Crown | Not specified in this fiche | Push-pull (not screw-down) |
| Bracelet | Integrated, "Rouleaux" links | Not specified in this fiche |
| Launch year | 2020 (relaunch on Calibre B01) | Not specified in this fiche |
| Market price in Cazador | Insufficient data | Insufficient data |
Pick the Chronomat B01 42 if you want an integrated-bracelet sport watch, with a rider-tabs bezel and higher water resistance (100m), rooted in Breitling's 1980s aesthetic.
Breitling Chronomat B01 42 →Pick the Navitimer B01 Chronograph 43 if you value the circular slide rule as a genuinely functional navigation tool, the design most historically tied to civil aviation since 1952.
Breitling Navitimer B01 Chronograph 43 →