Duomètre Collection - "Duomètre à Chronographe" by Jaeger-LeCoultre

The highest expression of the art of the chronograph. A true masterpiece of micromechanics, its Jaeger-LeCoultre 'Dual-Wing' Calibre contains two independent power reserves, one of which is devoted solely to a chronograph possessing unique functions: hours, minutes and seconds hands, a display of units per minute, and a "foudroyante" seconds display with zero reset.