Junghans J98/1; Junghans 698.72; Front
Junghans J98/1; Junghans 698.72; movement
Junghans J98/1; Junghans 698.72; back
Junghans J98/1; Junghans 698.72; crown
Junghans J98/1; Junghans 698.72; totale
The strap seems to be original.
As befits a form caliber this was of course built primarily in the form watches.
Listing of caliber Junghans J98; Junghans 698