The famous three-part tonneau-shaped case underwent a bit of modernization with the RM 11-03, but the watch's dynamic, futuristic look remains. The technical masterpiece is powered by an automatic skeleton movement with a variable geometry rotor. The front of the case is satin-brushed, and the case itself is held together by 20 spline screws in grade 5 titanium.

The RM 11-03 is equipped with hours, minutes, seconds, and a flyback chronograph function with a 60-minute countdown at 9 o'clock and 12-hour subdial. Further complications include an oversized date and a month display.

The RM 11-03 is powered by the automatic caliber RM AC3. The plate and bridges are made of grade 5 titanium, and the surfaces are satin-finished and beveled by hand.

The in-house caliber has a titanium variable geometry rotor. This means that the rotor's inertia can be adjusted to the wearer's activities to optimize the way the watch is powered. The rotor is made of satin-finished and PVD-coated grade 5 titanium and is adjusted in six different positions. When fully wound, the watch boasts some 55 hours of power reserve.