The Piaget Altiplano Chronograph actually sets two new slimness records, both for the movement (just 4.65 mm thick) and the case (a wafer-like 8.24 mm). Piaget has created 25 in-house movements that it considers “ultra-thin,” with 14 of them holding world records in their category. This latest is Caliber 883P, based on Piaget’s 880P, the thinnest automatic movement on the market.

Two years of development went into its creation, and the finished movement boasts unprecedented thinness in several key components, including the cannon-pinion (.12 mm), barrel staff (.115 mm), and chronograph gear finger (.06 mm). Piaget also managed to equip the movement with a 50-hour power reserve, a small seconds display, and a dual-time indication — all this, of course, in addition to a flyback chronograph function controlled by a column wheel and a precision-ensuring vertical clutch system.

The 30-minute chronograph counter is displayed on a subdial at 3 o’clock, the small seconds on a subdial at 6 o’clock, and the 24-hour indicator on a subdial at 9 o’clock.