TAG Heuer used the Monaco Grand Prix weekend to unveil the Monaco Speed 12, the most radical rework yet of the square-cased watch Steve McQueen made famous in 1969. The conventional hour hand gives way to twelve rotating pistons ringing the dial, each one finished in contrasting sandblasted and polished surfaces, taking turns to reveal the hour as the minute hand sweeps past twelve. It is a motorsport-themed take on the jumping-hour complication, built to look, as much as a watch movement can, like the inside of a twelve-cylinder engine.
The mechanism driving it all is new: the Calibre TH84-00, developed in partnership with La Fabrique du Temps Louis Vuitton, the LVMH atelier behind the original Spin Time movement this complication is adapted from. A grooved, engine-block-style centre anchors the dial, carrying the Monaco and TAG Heuer badges, while a red-tipped minute hand and a dashboard-style track complete the reference to a car’s instrument cluster rather than a wrist.
Housing the movement is a 40mm Grade 5 titanium case, square in profile as every Monaco has been since the original, but built around four black DLC-coated arches that suspend the movement behind sapphire on the front, the bezel, and the case back. Beyond its outline, the result has little left in common with the watch McQueen wore on screen. TAG Heuer has experimented with unconventional movement architecture inside the Monaco before, most notably with the belt-driven V4 concept of the early 2000s, but the Speed 12 is the first time that instinct has reached full limited-edition production.
The choice of venue was not incidental. Unveiling the watch during the Monaco Grand Prix lets TAG Heuer lean on a role it already holds: official timekeeper of Formula One. Pairing a motorsport-themed movement with motorsport’s own showcase weekend turns the launch into a piece of the calendar that the watch is, in effect, already part of.
The Monaco Speed 12 is limited to 50 numbered pieces, priced at $87,000, or €77,000 in Europe, and is scheduled to reach boutiques in December 2026. As a limited run rather than a true concept piece, it suggests TAG Heuer sees enough demand for the idea to make it, briefly, a commercial proposition rather than a one-off curiosity — a small bet that watch collectors want their hour markers to move like an engine, not just tell the time like one. Visit Tag Heuer here.
