in the upper echelons of Haute Horologerie when it enveiled the Gyrotourbillon 1. This watch is the first of its kind to feature a spherical tourbillon that integrates an equation of time, perpetual calendar and retrograde hands. Powered by the Jaeger LeCoultre Calibre 177, the Jaeger LeCoultre Grande Complication Gyrotourbillon 1 also has an 8 day power reserve and is set in a round platinum case with a single crown at 3 o'clock.