The crown and the hands are not original as can be seen in the catalog of 1958. The picture in the middle shows not exactly the same watch because the shown one has golden relief figures.
Under the balance wheel no production code is imprinted.
Click here for another version of the Junghans J93S, the Junghans 693E called (scroll down to the movement without case): Junghans 693E; Junghans J93S; Junghans 693.10
The caliber J93S has a sub second. If there was an attached 1 to the caliber designation (J93S1) this would have meant that the watch is equipped with a sweep second.