Watchuwant is now WatchBox! Subscribe for the best luxury watch content. JLC Master Grande Tradition Gyrotourbillon 3 Review For those who love them, this is the tenth installment of the Jaeger-LeCoultre Hybris Mechanica series. It was released in 2013 at SIHH to celebrate 180 years of the manufacture Jaeger-LeCoultre, and only 75 were created to mark the occasion. Video and content by Tim Mosso and Pheline Jerome.