The watch is certainly only conditionally suitable for diving, the waterproofness was ex factory spent with 10 atü. The reference number of the watch is: 67/3951 below is also to be read: 6715020
The watch was then offered for 260, - DM.
With a big thanks to Wolfgang Wusatiuk, who offers many beautiful Junghans-Watches in his sales shop in Kuchl (Schatztruhe Kuchl, Markt 11, 5431 Kuchl, AT)! It is absolutely worthwhile!
The watch with the reference number 67/3951 was also equipped with another movement, the former Junghans 600.10. The serial number (92730) of the shown watch is also smaller, so the watch should be older. Also the back is constructed differently and is fixed with a screw ring.
Here, the revision of the watch is shown: Revision of a Junghans 600.10 Skin Diver