Latest update: 13.07.2016
Investigation of this type pocket watch from Junghans is ongoing.
Thanks for help to the "Zentrum für Militärgeschichte und Sozialwissenschaften der Bundeswehr" libary.
Junghans delivered these pocket watches to the military according to specifications mentioned in the LDv. 253/6. Zeitübertragungsuhr ZÜU.
Case size 54 x 71 x 15 mm
Seen with J47G, J47b/1 and J47c/1 movements.
Pictures courtesy of "east AL" from www.uhrforum.de