Breitling
Breitling Chronomat B01 42 RB01343A1C1R1
The Breitling Chronomat B01 42 (reference RB01343A1C1R1) is a 42 mm watch. It runs on the automatic caliber B01.
Specifications
Case
- Reference
- RB01343A1C1R1
- Collection
- Chronomat
- Case size
- 42 mm
- Bracelet / strap
- Rouleaux bracelet
Movement
- Movement
- Automatic
- Caliber
- B01
Dial versions
This reference was made with these dials and finishes.
RB01343A1C1R1
RB01343A1C1R1
How it compares within the Chronomat family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| RB01343A1C1R1 (This watch) | 42 mm | — | — | B01 | — |
| A10380 | 36 mm | Stainless steel | — | 10 | 2020– |
| A17356 | 38 mm | Stainless steel | Ice Blue / Pink / White | 17 | 2021– |
| A32398 | 40 mm | Stainless steel | — | 32 | 2021– |
| A77310 | 32 mm | Stainless steel | — | 77 | 2020– |
| AB0134 | 42 mm | Stainless steel | — | B01 | 2020– |
| AB0136 | 44 mm | Stainless steel | Black / Blue / Green / Anthracite | B01 | 2021– |
| AB0158 | 42 mm | Stainless steel | — | B01 | 2026– |
| AB3114 | 40 mm | Stainless steel | — | B31 | — |
About the Chronomat family
The Chronomat name first appeared on a 1940s Breitling chronograph with a slide-rule bezel. The modern Chronomat was introduced in 1984, with rider tabs on the bezel, and became the brand's main sports chronograph. In 2009 it was the first watch to carry Breitling's in-house caliber B01.
The 2020 generation brought back the Rouleaux bracelet with its rounded links. The catalog lists more than two hundred references, including chronographs, three-hand automatics, GMTs and smaller models, in steel, red gold, Blacksteel and two-tone. Dealers identify the generation, size and caliber from the reference and check the bracelet.
Quick answers
- What size is the Breitling Chronomat B01 42 RB01343A1C1R1?
- The Breitling Chronomat B01 42 RB01343A1C1R1 has a 42 mm case.
- What movement does the Breitling Chronomat B01 42 RB01343A1C1R1 use?
- It uses the automatic caliber B01.
Catalog facts checked October 2026.