L031.1

Hand-wound caliber with a shock-protected screw balance and Nivarox® hairspring oscillating at 21,600 vph; features a whiplash fine-adjustment system with a patented beat-regulation mechanism. Includes home time linked to an outsize date, zone time with a city ring, individual day/night indicators for both time zones, a subsidiary seconds subdial, an UP/DOWN power-reserve gauge, and a stop-seconds function.