The JLC 822 is a watch movement from Jaeger-LeCoultre.
The 822 is a hand-winding movement found in many non-Duoface Reverso watches. It is made up of 134 pieces and is just 2.94 mm thick. It runs at 21600 vph, has 21 jewels, and a power reserve of 45 hours.
Jaeger-LeCoultre currently uses this calibre in 8 watches, making it their most-used manual-wind movement. It is designed for the larger Reverso line, while the smaller JLC 846/1 is found in the smaller ladies models.