TAG Heuer Only Watch Carbon Monaco

TAG Heuer has announced its return to Only Watch with the TAG Heuer Only Watch Carbon Monaco, a one-off, high-end, hand-finished version of the Swiss watch company’s iconic square-cased automatic chronograph that will never be recreated.

The unique watch will be auctioned at Only Watch 2021, the biennial charity watch auction, which is scheduled to take place this year in Geneva on 6 November.

The Only Watch Carbon Monaco is inspired by the mythical black-PVD-cased Monaco Reference 74033N known by collectors as the “Dark Lord”. It was produced in limited quantities in the mid-1970s and never appeared in a Heuer (as the company was called until 1985) catalogue or any of the company’s advertising. Today, it is extremely rare and highly prized.

TAG Heuer Only Watch Carbon Monaco

The TAG Heuer Only Watch Carbon Monaco’s case tells the story of this special watch using state-of- the-art manufacturing techniques. It’s forged in black carbon fibre, giving it a wonderfully mysterious look.

TAG Heuer has used carbon fibre for the Monaco case before with the 2018 Monaco Bamford, but this is a unique case that was designed explicitly to carry the largest sapphire crystal caseback ever applied to a Monaco. TAG Heuer’s engineers wanted to give the watch’s future owner an unimpeded view into its bespoke movement, while ensuring the watch remained water-resistant.

The striking skeletonised dial that gives the watch so much of its character is also carbon. It was created in collaboration with TAG Heuer’s long-time partner, the highly regarded dial specialists ArteCad, and is worked from a single piece of carbon fibre.

The dial’s architectural look was created by milling and drilling the basic form to reveal striking structural shapes that stretch across the face of the watch like the struts on a racing car, a design that makes subtle reference to TAG Heuer’s integral role in the evolution of modern motor sport over more than six decades. Each of the dial’s intricate skeletonised facets has been finished by hand using the fine-watchmaking technique of anglage, which gives the dial its depth and multidimensional look.

Underneath these, a date wheel peeks through, as does the top side of the movement. Typically, the top side of a calibre is left raw as it’s unseen, hidden by a solid dial. But in this case, TAG Heuer elected to hand-finish it to ensure every element was as exceptional as it could be, even when partially obscured, a decision that’s symbolic of the relentless attention to detail applied to the watch.

Sitting on top of the carbon dial are three black galvanised brass plates that form the watch’s chronograph and small-seconds subdials. Orange detailing sampled from Only Watch’s 2021 sun-kissed colour palette makes the hands stand out against the black dial, while the hour markers are individually machined blocks of highly luminescent beige Super-LumiNova®.

The TAG Heuer Only Watch Carbon Monaco is powered by TAG Heuer’s in-house Heuer 02 automatic chronograph, a Swiss-made movement with an 80-hour power reserve.

This, however, is a unique expression of the Heuer 02, created exclusively for the occasion. Not only has the movement been beautifully decorated by hand, it also carries TAG Heuer’s groundbreaking in- house carbon hairspring, developed by the company’s celebrated TAG Heuer Institute.

Appearing in the Heuer 02, and therefore a Monaco for the very first time, the carbon hairspring delivers exceptional levels of anti-magnetism, shock resistance, stability across temperature ranges and refined geometry for excellent chronometric performance. The movement also features a unique oscillating weight in the form of the TAG Heuer shield, which is not only hand finished throughout, but is also decorated with a fine line in the gradient orange to yellow colour of Only Watch 2021.

Astonishingly, the seamless transition from orange to yellow was achieved by hand, painted by the master dial artist and micro-painter André Martinez. André is based in Le Locle, only a few kilometres from TAG Heuer’s headquarters in the Swiss watchmaking town of La Chaux-de-Fonds.

But the movement’s story doesn’t end there. To match the spirit of Only Watch, TAG Heuer decided to give the movement an exceptional level of finishing and to work with Artime SA, one of the watch industry’s leaders in decorative techniques. This continued the watch’s bespoke story and demonstrated the company’s ongoing commitment to traditional watchmaking savoir faire.

TAG Heuer Only Watch Carbon Monaco case back view

There are no fewer than 10 types of hand finishing. The most visible is the rare graté decoration. Applied by hand, this creates the chequered-flag motif seen on the movement’s bridges and its surround, which carries further special engravings. To create an additional sense of depth, the movement also features further hand finished techniques including anglage, black polishing, circular graining, straight graining, perlage, snailing, sandblasting, chevron engraving and sunburst finishing.

It took 25 hours of additional hand-finishing to create this spectacular effect, producing a fine-watchmaking story worthy of Only Watch.

Exclusively for this unique watch, TAG Heuer has created a novel strap that looks like a metal bracelet, but which is in fact made of leather. The link effect is produced using a highly skilled process that took months to perfect. First, silicon is injected into the sole of the leather. This is then heat-stamped with a mould in the shape of a metal link bracelet, creating the three- dimensional effect. TAG Heuer has never used this technique on a watch strap before.

Technical details

Case
Forged carbon featuring the largest sapphire case back fitted to a Monaco
Diameter: 39 mm
Thickness: 15.56 mm

Dial
Skeletonised concave hand-finished forged carbon with machined blocks of Super-LumiNova®

Movement
Heuer Calibre 02 with carbon hairspring and extensive hand-finishing throughout, including special gratté technique

Bracelet
Handmade leather with the impression of a metal bracelet