The movement side delivers on what the dial side promises – and then some. The overall effect is classic A. Lange & Söhne; if the Datograph or Double Split’s movements give the impression, as has so often been said, of a veritable city under glass, the Triple Split is a veritable megalopolis. The sheer depth of the movement is quite dazzling, with black polished steel parts absorbing and reflecting light in sharp-edged brilliance set off by the creamy richness of striped German silver bridges. The complexity is impressive, and the aesthetic effect depends on it to a point, but you can appreciate the sense of logical inevitability the mechanism radiates, and the extreme good taste and care that’s been taken in finishing the movement, without knowing anything about technical watchmaking at all. If you are the least bit susceptible to beautiful mechanisms, Lange is hard to resist even in such simple manifestations as the Saxonia Thin 37mm; the Triple Split leaves you no chance at all.