In a typical IWC style, the self-winding movement travels behind a double case-back with enhanced protection against magnetic fields. 
The matte stainless steel case with its narrow, steep bezel and massive screw-down case-back has a moderate diameter of 39 mm and is thus 1 mm smaller than the case of the Mark XVIII. The height of 10.86 mm gives it a sporty look and is the appropriate thickness for a classic pilot’s watch. The Manufacture caliber 32110 contributes to the height of the case: the movement is 4.2 mm thick. Its diameter is 28.2 mm. In addition, thanks to the soft-iron inner case and the additional inner case back, the 32110 movements are equipped with additional protection against magnetic fields, a detail already included in the Mark 11.
The triangle on either side consists of two dots, which are borrowed from historical pilot’s watches. It ensured – and continues to ensure – better positioning of the fake Rolex watch hands in a dark cockpit. The beige coating of this triangle is a nostalgic touch on the dial. The same beige hue – and the same sense of nostalgia – recurs on the two main hands and the three index lines for the quarters, half-hours and three-quarters hours. On the other hand, the luminous bright green coating on the hour and minute hands and on the four indexes is a feature of IWC Pilot’s Watches that dates back at least to the ancestors of Mark 11.
IWC’s self-winding manufacture caliber 32110 is the newest addition to this functional pilot’s watch. the 32000 series was designed as a basic movement line with an emphasis on robustness and reliability. Just like the previous basic chronograph movement 69000, this newcomer is designed to replace movements from external sources such as ETA and Sellita. As the price of this watch suggests, the new in-house movement can be incorporated almost without a price increase. The movement is rock-solid and up to date. Similar to the Pellaton winding mechanism invented by replica IWC itself, the new movement includes an effective click-winding system in both directions. This innovation is simpler, however, and is a joint development within the Richemont Group. This winding system can also be used by other Richemont Group manufacturers in their movements. It winds efficiently and builds up a substantial 72-hour or 3-day power reserve in a single barrel.
The movement cannot be seen through the opaque double case back, but it is still designed in a way that is unique to IWC. Typical details are the solid bridges decorated with circular Geneva waves, the various circular graining, and, above all, the skeletonized rotor bearing the IWC logo. In all cases, the movement’s rate values remain within a perfect chronograph range of five seconds – not outstandingly precise, but still solid and satisfying, just like the entire movement.