In 1969, when TAG Heuer first introduced its “Monaco” design on the wrist of Steve McQueen in the movie Le Mans, the chronograph made headlines. Four decades later, the Swiss watchmaker is making a unique, one-off version to auction off in benefit of Duchenne muscular dystrophy research. The Mikrograph features the fastest chronograph movement on the market, beating at 360,000 beats per hour, and is automatically wound by means of a circular oscillating weight with a 42-hour power reserve. The avant-garde dial is a highly sophisticated multi-level dial, with alternating black lacquer and silver opalin finishes. Oversized screws are used to evoke the engine of a sports car, and it’s balanced off with a black “Barenia” strap — the highest quality calfskin leather, with red perforation accents made to echo the fire-red hands of the dial. Rounding out the package, TAG Heuer has enlisted the South African artist Paul du Toit to create a unique artistic box to host the Monaco Mikrograph. Guess we’ll see in September how much the luxury Swiss watchmaker has raised for MS, but it’s an admirable effort.