The top notch movements made by Junghans are the so called "Meisteruhr" - Master Watch.
These watches are bridge movements with 15 jewels, lever escapement with visible jewels,
cut compensation balance and Breguet steel hair spring.
For me, the absolute best movement is the J41, which has in addition to the above mentioned
features a regulating spring and the second-adjustment.
As the produktion almost stopped completly during WWII these watches have been built between
1914 and 1939.