Junghans Meister ID: 680.70 or WWII Military Production?

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Hi everyone, im new here
I hope find some clue on my fleamarket find.
Junghans Meister
Probably circa 30 - 40
Tropic bracelet from the 40 new by myself.
Its that a 680.70 junghans or a war production ?
Greetings
 
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Please be aware of radium parts!

I would say its been produced for war and been used in military
Many of these examples was no issued