A few watch brands are releasing news of the watches that they will be presenting at SIHH in January, and Piaget has set another record for thinness, this time with a hand-wound ultra-flat chronograph. The dial has the classic Piaget Altiplano minimalist look, with continuous seconds on a subdial at 6 o’clock, a 30-minute subdial at 3 o’clock, and a 24-hour subdial at 9 o’clock for the second time zone. The subdials are on the same level as the rest of the dial, a feature that reinforces the Max Bill-type Bauhaus purity of the design. The chronograph pushers are discreet but functional, with a profile that follows the curve of the case, and the watch has the flyback function which combines reset and restart in just one touch of the pusher. It is a column-wheel movement, visible through the transparent caseback.

The watch has a new movement, the Calibre 883P, the thinnest manual chronograph movement in the world at 4.65 mm, which gives the entire case a thickness of 8.24 mm, also a world record. The case is 41 mm in diameter, mounted on an alligator strap. It is available in two versions, pink gold, and white gold with 56 diamonds on the bezel. Reference GOA40031.