Breitling Chronomat B01 42 Copper Dial on Silver Rouleaux Bracelet AB0134101K1A1

Breitling’s all-purpose watch for your every pursuit embodies the brand’s storied mastery of mechanical chronographs. Born in an era when quartz ruled the market, the Chronomat 42 rose to prominence by combining aggressive presence with precision engineering, a pairing that defined Breitling’s response to demand for robust, reliable timekeeping. Inspired by the Frecce Tricolori chronograph developed in collaboration with Italy’s famed aerial squadron, this model marks the Chronomat’s role in Breitling’s centenary celebration and the return of the mechanical chronograph to Breitling’s core identity.

What makes this Chronomat B01 42 stand out

• 42 mm stainless steel case with a brushed and polished finish that blends rugged durability with refined aesthetics.
• Uni-directional rotating bezel in a polished stainless ring with brushed rider tabs for quick, confident timing.
• Copper/bronze-toned dial with black sub-dials and a tachymeter scale on the flange for precise speed calculations.
• Luminous hands and applied index markers for legibility in low light, paired with a date window at 6 o’clock.
• Chronograph with column wheel mechanism: a large red central seconds hand, 30-minute counter at 3 o’clock, and 12-hour counter at 6 o’clock.
• Breitling Manufacture Caliber 01 (B01): automatic movement beating at 28,800 vph, 47 jewels, and an impressive ~70-hour power reserve, COSC-certified for accuracy.
• COSC-certified chronometer ensures top-tier precision under real-world conditions.
• Screw-in crown and water resistance up to 200 m (660 ft), ready for adventurous outings and everyday wear alike.
• Rouleaux bracelet in brushed and polished stainless steel with a robust push-button folding clasp for secure, comfortable wear.

Materials, design, and durability you can trust

The Chronomat B01 42 pairs a solid stainless steel case with a scratch-resistant sapphire crystal, delivering enduring clarity even in demanding environments. The copper dial’s depth is enhanced by a black sub-dial contrast, while the tachymeter scale on the flange supports quick measurements of speed based on travel time. The bezel’s four rider tabs remain a signature visual cue, symbolizing Breitling’s aviation heritage and the Chronomat’s heritage as a tool watch with a modern, refined twist.

Who this watch is for

• Professionals who want a watch that transitions seamlessly from business meetings to weekend adventures.
• Enthusiasts who value a COSC-certified chronometer with a robust in-house movement for reliability and long-term performance.
• Collectors drawn to Breitling’s aviation-inspired lineage and the Chronomat’s role in re-establishing mechanical chronography.

Practical use cases and real-world benefits

• Everyday wear with a confident, substantial presence thanks to a 42 mm case and a versatile brushed/polished finish.
• Precise timing for sports or driving scenarios with a readable copper dial, prominent sub-dials, and a tachymeter scale.
• Adventure-ready performance: 200 m water resistance makes it suitable for swimming and snorkeling, while the screw-in crown protects against accidental changes during active use.
• Long-term reliability: the in-house B01 movement delivers a generous ~70-hour power reserve, reducing the need to reset after short off-wrist periods.

With its iconic Rouleaux bracelet and a combination of heritage-inspired design and modern mechanical prowess, the Breitling Chronomat B01 42 Copper Dial on Silver Rouleaux bracelet (AB0134101K1A1) stands out as a distinctive choice for men who demand both performance and presence in a single timepiece.

• Brushed & polished stainless steel case.
• Polished stainless steel bezel ring with brushed finished stainless steel 1/4 hour rider tabs.
• Copper colored dial with black sub-dials.
• Black dial flange with Tachymeter scale.
• Polished hands with luminous fill.
• Applied polished index hour markers with luminous fill.
• Fine printed minute/seconds & fractions of a seocnds track.
• Date window at 6 o'clock.
• Small seconds sub-dial at 9 o'clock.
• Chronograph/Stopwatch functions:
• Column wheel mechanism.
• Large red central seconds counter hand.
• 30 minute counter sub-dial located at the 3 o'clock position.
• 12 hour counter sub-dial at the 6 o'clock position.
• Breitling caliber B 01, beats at 28'800 vph, contains 47 jewels & has an approximate power reserve of 70 hours.

Condition	New/Unworn
Case Shape	Round
Case Dimensions	42mm
Case Thickness	15.1mm
Case Material	Stainless Steel
Dial Color	Copper
Crystal	Scratch Resistant Sapphire
Bezel	Uni-Directional Rotating
Screw-in Crown	Yes
Water Resistance	200m/660ft
Case Back	Solid
Band Material	Stainless Steel
Color/Finish	Brushed & Polished
Band Name	Rouleaux
Clasp	Push Button Folding Clasp
Movement	Automatic - Chronometer
Complications	Chronograph
COSC Certified	Yes