Known for creating some of the world’s slimmest complications, Piaget has once again worked its miniaturizing magic—this time creating the world’s thinnest chronograph. The Piaget Altiplano Chronograph is equipped with the company’s new 883P caliber, which is an astounding 4.65 mm thick and is housed in a case just 8.24 mm thick.

The watch’s chronograph function is of the flyback variety, meaning that unlike a traditional chronograph—which requires three presses to stop, reset, and then restart the mechanis…