Unfortunately, only the movement of the caliber Junghans J100 can be shown an associated case does not exist. The movement shown here has an expensive Junghans own fine tuning adjustment called sector gear.
Images of a Junghans J100 with case can be seen here: www.hwynen.de
The Junghans J100 was only in so-called "carrying watches" installed to get tested there by employees of the company (please refer: 150 Augenblicke aus 150 Jahren Junghans; Kerstin Simon; p 12).
The caliber forms the basis for the development of the electro-mechanical watches that are built up in 1975 and continued to be developed further on.