Tudor Black Bay Chrono "Carbon 26" (Ref. M79377KN-0003) — A COSC In-House Chronograph in Full Carbon Composite, LE 2,026

Description

The Tudor Black Bay Chrono "Carbon 26" (Ref. M79377KN-0003) is the brand's most aggressive carbon-composite chronograph to date — and one of the most strategically positioned watches of Tudor's 2026 cycle. Tied to the Visa Cash App Racing Bulls Formula 1 team and inspired by the updated VCARB 03 car, this 42 mm full-carbon Black Bay Chrono is capped at 2,026 pieces for the model year — and is set to drive significant collector demand both inside and outside the F1 community.

Underneath the lightweight, monolithic black case sits the in-house Calibre MT5813: a column-wheel, vertical-clutch chronograph with a silicon balance spring, a 70-hour power reserve, and full COSC chronometer certification. This is exactly the kind of "best-value chronograph in luxury watchmaking" proposition that has been Tudor's calling card for the past decade — but in the most performance-oriented case material the brand has ever produced for a Black Bay Chrono of this generation.

For Freddy's audience, this is a critical release: a fully in-house, COSC-certified, column-wheel chronograph in a carbon-composite case under EUR 8,000 is a combination almost no other major brand can match at this price point. The 2,026-piece model-year cap further sharpens the proposition.

Design

The 42 mm case is constructed entirely from a carbon composite material, including the case middle and the fixed tachymeter bezel — a single-material, single-tone treatment that gives the watch a much more tactical, motorsport-coded silhouette than the steel and ceramic Black Bay Chronos before it. Carbon composite is not just lightweight; it also produces a faintly marbled surface texture that no two cases share exactly, giving every example a subtle individual fingerprint.

The dial is the most colour-coded of any modern Black Bay Chrono. A "racing white" base is contrasted by two black carbon-composite sub-dials (30-minute counter at 9 o'clock, running seconds at 3 o'clock) that reference the bicompax layout of vintage motorsport chronographs. Yellow accents across the chrono seconds hand, indices and date frame nod directly to the 2026 Visa Cash App Racing Bulls livery. The crown and pushers are also rendered in black carbon composite, maintaining the all-carbon visual language. Strap options include a black fabric strap with yellow stripe, a yellow rubber strap, and a matching carbon-composite-link bracelet.

Specifications

Reference: M79377KN-0003
Case: 42 mm carbon composite, ~14.4 mm thick, screw-down crown, 200 m water resistance
Bezel: Fixed carbon-composite tachymeter
Crystal: Sapphire with anti-reflective coating; sapphire caseback
Dial: Racing white, contrasting black carbon sub-dials, yellow Visa Cash App Racing Bulls accents, date at 6 o'clock
Movement: Tudor Calibre MT5813 — automatic chronograph, column wheel + vertical clutch, silicon balance spring
Frequency: 28,800 vph (4 Hz)
Power reserve: 70 hours
Certification: COSC chronometer
Functions: Hours, minutes, central chronograph seconds, 30-min counter, small running seconds, date
Strap / bracelet: Black fabric with yellow stripe, yellow rubber, or carbon-composite-link bracelet
Limited edition: 2,026 pieces
Price: EUR 7,980 / CHF 7,050 / USD 8,625

What's Exciting

The MT5813 calibre is one of the most credible "value chronograph" platforms on the market today. Co-developed with Breitling (whose B01 shares the same architecture), it brings a column wheel, vertical clutch, silicon hairspring and a 70-hour power reserve — a specification stack that, ten years ago, would have lived only in CHF 20,000+ chronographs. Tudor offers it COSC-certified, in a full carbon-composite case, under USD 9,000.

The 2,026-piece cap tied to the model year is also a smart commercial move. Tudor's recent Black Bay Chrono limited editions (the Pink "RB" and Yellow / Blue references in particular) have all traded at premiums on the secondary market within months of release — and a full-carbon case with F1-team livery and a clean four-figure production run is precisely the kind of release that becomes hard to find at retail very quickly. For the value-for-money lens, this remains one of the most defensible chronograph buys of 2026.

History

The Black Bay Chrono debuted in 2017, jointly developed with Breitling as part of an unusual movement-sharing collaboration between two long-rival chronograph specialists: Tudor supplied its MT5612-based three-hand calibre, while Breitling shared the B01 chronograph architecture, which became the basis for Tudor's MT5813. Tudor reworked the movement aesthetics, finishing and bidirectional rotor system to its own house standards, and the MT5813 has since become the spine of every Black Bay Chrono variant.

Tudor has been a long-running official timing partner of motorsport, but the Visa Cash App Racing Bulls partnership — formalised in 2024 — has produced some of the brand's most distinctive and most rapidly sold-out limited editions. The "Carbon 26" pushes the visual identity further by going to a full-carbon case for the first time on this generation of Black Bay Chrono, and ties the production number to the model year, a long-standing Tudor convention for limited motorsport pieces.