TAG Heuer unveiled two Monaco watches in the space of two months in 2026. The Evergraph arrived in April — a $25,000 manufacture chronograph with a reimagined compliant mechanism. The Speed 12 was unveiled at the Formula 1 Grand Prix de Monaco in June — a $87,000 limited edition with twelve rotating pistons that tell the time like a V12 engine firing sequence.
Neither is a conventional chronograph. Both use the Monaco's square titanium case as a platform for genuine mechanical ambition. Taken together, they represent something TAG Heuer has not had in years: a coherent story about what the Monaco actually is.
Images in this post are AI-generated for editorial illustration. They may not represent the exact watch configuration. For accurate product photography, visit tagheuer.com.
TAG Heuer Monaco Speed 12 ref. WBW2180.FT8133, Calibre TH84-00, Grade 5 titanium, $87,000. Limited to 50 pieces. Available December 2026. AI-generated editorial image.
The Mechanism: 12 Pistons, No Hour Hand
The Speed 12 does not have a conventional hour hand. Instead, twelve miniature piston-shaped indicators are arranged in a ring around the openworked dial. Each piston bears an engraved Arabic numeral. As the minute hand completes a full revolution, one piston returns to its resting horizontal position and the next rotates 90 degrees to face the viewer, revealing the current hour.
The mechanism derives from the Louis Vuitton Spin Time, originally conceived by watchmakers Michel Navas and Enrico Barbasini and produced by La Fabrique du Temps Louis Vuitton — the manufacture arm of LVMH. For the Speed 12, TAG Heuer completely reworked the display module, replacing LV's cubic indicators with engine piston forms and redesigning the architecture to fit the Monaco case's engine-cover aesthetic.
The resulting movement, Calibre TH84-00, is automatic with 28,800 vph and a 45-hour power reserve. It is an LVMH group collaboration — not in-house in the way the Evergraph's TH80-00 is — but a genuinely original mechanism specific to this watch.
Unveiled at the 2026 Formula 1 Monaco Grand Prix — the natural venue for a watch that looks like an engine. AI-generated editorial image.
The Case: Square Titanium, Sapphire Everything
The 40mm case is Grade 5 titanium — same as the Evergraph. Where the Evergraph has a conventional sapphire crystal, the Speed 12 adds a sapphire bezel as well, giving transparent viewing from four sides: through the front, around the bezel edges, and through the solid sapphire caseback. Black DLC-coated corner arches frame the case and reference the geometry of a racing rollcage. The rubber strap has textile embossing and red stitching.
30m water resistance is modest — this is a haute horlogerie piece, not a tool watch, and the mechanism complexity and all-sapphire construction are incompatible with deeper water resistance.
The Argument for $87,000
Price context: a Royal Oak Chronograph in steel retails at $47,500. A Patek Nautilus 5726 annual calendar is $65,000+. The Speed 12 at $87,000 enters genuine haute horlogerie territory, competing on mechanical spectacle against watches from brands that have long played in that space.
The argument is simple: there is nothing else that looks like this. The piston jumping-hour display is one of a kind. The Monaco's square case frames it perfectly. 50 pieces limits supply absolutely.
The Speed 12 — timepieces do not get much more motorsport than this. AI-generated editorial image.
What Two Monacos in One Year Means
Between the Evergraph and the Speed 12, TAG Heuer has positioned the Monaco collection as a platform for mechanical innovation rather than just a heritage icon to repaint in new colours. The Evergraph at $25,000 is the accessible engineering story — an in-house compliant chronograph available in volume. As covered in the Evergraph post, the bistable mechanism is real watchmaking progress.
The Speed 12 at $87,000 is the statement piece — limited edition, LVMH collaborative, explicitly haute horlogerie. Together they establish that the Monaco deserves to be considered alongside AP and Richard Mille as a case study in using a singular design as a mechanical canvas.
The TH84-00 developed with La Fabrique du Temps Louis Vuitton. Visible through all-sapphire construction from front, back, and sides. AI-generated editorial image.
Pre-Owned Angle
50 pieces at $87,000 means a thin, slow pre-owned market. Secondary examples, when they appear, will trade with a collector premium rather than a discount. For buyers interested in the Monaco at accessible price points, the Evergraph at $25,000 new is the engineering play, or standard Monaco chronographs at $5,500–$7,000 pre-owned remain solid value.
Speed 12 ($87,000, 50 pieces, piston jumping hour) beside the Evergraph ($25,000, compliant chronograph). Two very different Monaco statements, one year. AI-generated editorial image.
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