Breitling
Breitling Chronomat B01 42 (2026 redesign) AB0158
The Breitling Chronomat B01 42 (2026 redesign) (reference AB0158) is a 42 mm stainless steel watch. It runs on the automatic caliber B01 with a 70-hour power reserve and is water resistant to 200 m. It was introduced in 2026 and is still in production.
Specifications
Case
- Reference
- AB0158
- Collection
- Chronomat
- Case size
- 42 mm
- Thickness
- 13.77 mm
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 200 m
- Bracelet / strap
- Bracelet / Rubber strap (Rouleaux, stainless steel)
Dial and bezel
- Bezel
- Unidirectional rotating dive bezel, 0-60, rider tabs
Movement
- Movement
- Automatic
- Caliber
- B01
- Power reserve
- 70 hours
- Frequency
- 28,800 vph
- Jewels
- 47
- Functions
- Small seconds, Date, Chronograph
Production
- Production
- 2026 – today (current)
Dial versions
This reference was made with these dials and finishes.
AB0158101A1A1 White
AB0158101A1A1
White
AB0158101A1S1 White
AB0158101A1S1
White
AB0158101C1A1 Blue
AB0158101C1A1
Blue
AB0158101C1S1 Blue
AB0158101C1S1
Blue
AB0158101L1A1 Green
AB0158101L1A1
Green
AB0158101L1S1 Green
AB0158101L1S1
Green
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 |
|---|---|---|---|---|---|
| AB0158 (This watch) | 42 mm | Stainless steel | — | B01 | 2026– |
| 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– |
| AB0110 | 44 mm | Stainless steel | — | B01 | 2009–2019 |
| AB0134 | 42 mm | Stainless steel | — | B01 | 2020– |
| AB0136 | 44 mm | Stainless steel | Black / Blue / Green / Anthracite | B01 | 2021– |
| 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 (2026 redesign) AB0158?
- The Breitling Chronomat B01 42 (2026 redesign) AB0158 has a 42 mm case, 13.77 mm thick.
- What movement does the Breitling Chronomat B01 42 (2026 redesign) AB0158 use?
- It uses the automatic caliber B01, with a 70-hour power reserve.
- How water resistant is the Breitling Chronomat B01 42 (2026 redesign) AB0158?
- It is water resistant to 200 metres.
- Is the Breitling Chronomat B01 42 (2026 redesign) AB0158 still in production?
- Yes, it is a current reference.
- When did the Breitling Chronomat B01 42 (2026 redesign) AB0158 come out?
- It was introduced in 2026.
- What is the Breitling Chronomat B01 42 (2026 redesign) AB0158 made of?
- The case is stainless steel. Bracelet or strap: Bracelet / Rubber strap (Rouleaux, stainless steel).
- Which dials was the Breitling Chronomat B01 42 (2026 redesign) AB0158 made with?
- The catalog lists 3 dials: White, Blue, Green.
Catalog facts checked October 2026.