This watch is also known as:
601.64.90 , Q6016490 , 601.64.90(Q6016490) .
The ultimate expression of the art of chronograph-making. Its Jaeger-LeCoultre ?Dual-Wing? movement is a genuine micromechanical work of art featuring two independent power reserves ? one of them entirely dedicated to a chronograph offering unique performances: hour, minute and seconds hands, a minute-unit indicator and a jumping seconds hand with reset function.