The AB0134101C1A1 reference brings a blue dial to the Chronomat B01 42mm platform, and this Breitling Chronomat B01 42 blue clone follows that combination with a sunburst blue dial and three black sub-dials. Breitling designed the modern Chronomat around a rouleaux-style bracelet with rider tabs on the bezel, distinguishing it from every other chronograph in the catalog. At 42mm with an automatic chronograph movement, this sits right at the boundary between sport and versatile daily wear. To see where the Chronomat sits in our Breitling ranking, read the short overview of the line there.

Specifications

• Model: Chronomat B01 42
• Reference: AB0134101C1A1
• Case size: 42 mm
• Case: stainless steel
• Dial: blue sunburst, three black sub-dials, date at 6, red chronograph seconds hand, black tachymeter flange
• Bezel: unidirectional with four rider tabs
• Crystal: sapphire, anti-reflective
• Bracelet: stainless steel rouleaux with folding clasp
• Movement: clone Cal. B01, automatic chronograph (column wheel, vertical clutch), 28,800 vph
• Power reserve: 55 hours (genuine Cal. B01: 70 hours)
• Water resistance: 50 m (genuine: 200 m)
• Functions: hours, minutes, small seconds, chronograph, date window at 6 o’clock

The rider tabs at 12, 3, 6, and 9 are the Chronomat’s signature detail. They allow you to grip and rotate the bezel even with gloves, a feature that dates back to the original Frecce Tricolori collaboration in 1984.

The Rouleaux Bracelet Question

Chronomat references tend to attract buyers who already own a Navitimer and want something with more wrist presence and a sportier edge. The rouleaux bracelet is polarizing: some find it the most comfortable integrated design in the brand’s range, while others prefer a standard three-link layout. Where the copper-dial AB0134101K1A1 pushes the Chronomat toward warmer, dressier territory, this blue version keeps the tool-watch character intact. For comparison across collections, the Chronomat range includes both 42mm and 44mm cases in mono-metal and two-tone configurations.

Breitling Chronomat B01 42 Blue Clone Among the Dial Colours

Breitling offers the Chronomat B01 42 with blue, black, copper, silver, green and anthracite dials, plus an ice blue version with a platinum bezel. The blue is an easy all-rounder because it pairs equally well with a steel bracelet and a leather strap. Collectors who rotate through different dial colors often start with blue for exactly that reason. Breitling rates the genuine Cal. B01 at 70 hours, while the clone Cal. B01 here runs about 55 hours, so a watch taken off on Friday evening will usually need winding and resetting by Monday morning. This blue Chronomat represents the core Chronomat proposition: a column-wheel chronograph layout with distinctive bracelet architecture and enough presence to anchor a collection.