Breitling Chronomat B01 42 Chronomat B31 40 Stainless Steel / Green / Rouleaux
Reference AB3114101L1A1
About this watch
The Breitling Chronomat B31 Automatic 40 AB3114101L1A1 introduces the time-and-date Chronomat format in a 40mm case as part of the 2026 Chronomat redesign. This stainless steel reference has a green dial, a stainless steel case, and a stainless steel Rouleaux bracelet. The case measures 10.99mm thick, giving the B31 Automatic 40 a noticeably different profile from the 42mm B01 chronograph models in the same updated collection.
The stainless steel case is water resistant to 200 meters and fitted with a cambered sapphire crystal with anti-reflective treatment on both sides. Its unidirectional ratcheted bezel has raised rider tabs, numerals, and minute indexes, retaining the Chronomat’s functional bezel layout in a three-hand configuration. The 2026 redesign also uses a more integrated case and bracelet architecture, with concealed lugs behind the case.
The green dial is arranged around central hours, minutes, and seconds, with a date aperture. Applied hour markers and central hands are treated with Super-LumiNova, while the absence of chronograph counters gives the dial a more open layout than the B01 42 models. The 40mm case size and time-and-date display make this reference distinct from both the larger chronograph models and the smaller 36mm automatic versions.
Inside the watch is Caliber B31, Breitling’s COSC-certified manufacture automatic movement introduced in 2025. It runs at 28,800 vibrations per hour and provides an approximate power reserve of 78 hours. This reference is fitted to a stainless steel Rouleaux bracelet with a concealed butterfly clasp and Breitling’s patented micro-adjustment system.
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Specifications
- Brand
- Breitling
- Family
- Chronomat B01 42
- Model
- Chronomat B31 40 Stainless Steel / Green / Rouleaux
- Reference
- AB3114101L1A1
- Movement
- caliber-b31
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer
- Case
- Stainless Steel 40mm
- Dial Color
- Green
- Crystal
- Sapphire
- Water Resistance
- 200
Current Listings
![[WTS] Breitling Chronomat B01 42mm 18k Rose Gold (3 oz of gold)](https://preview.redd.it/by55qpcik53h1.jpg?width=640&crop=smart&auto=webp&s=1ea6381d9537d861802bc1be5ac231cb74686247)
Breitling Chronomat B01 42mm 18k Rose Gold (3 oz of gold)
Up for sale today is a Breitling Chronomat B01 42mm in 18k Rose Gold, featuring 3+ oz of pure gold.
- Condition: Good with scratches on the 18k gold case
- Material: 18k Rose Gold
- Gold content: over 3 ounces
![[WTS] 2025 Breitling Chronomat B01 42mm Silver Panda Full Set](https://preview.redd.it/ae598e0wpl2h1.jpg?width=640&crop=smart&auto=webp&s=2aa1ae5c27410177423c676dad750994efc3b5b5)
2025 Breitling Chronomat B01 42mm Silver Panda Full Set
2025 Breitling Chronomat B01 42mm Silver Panda with automatic mechanical chronograph movement, in excellent pre-owned condition.
- Condition: excellent pre-owned condition, minor desk rash on buckle and fine hairline scratch on bezel
- Bezel: stainless steel rotating timing bezel
- Diameter: 42mm
- Lug width: 22mm
Breitling Chronomat B01 42MM Bronze Dial Steel Bracelet (AB0134101K1A1)
The Breitling Chronomat B01 features a bold style with vintage charm, blending the bronze dial with the classic rouleaux bracelet.
- Condition: Good Condition
- Bracelet material: steel
- Dial color: bronze
- Movement: in-house B01