Link: Cameras disguised inside coat zips and bugs hidden in tree trunks: Fascinating insight into the crafty tricks and devious gadgets German spies used during the Cold War

A Daily Mail Online article on, as it says in the title, spy gadgets used by the Ministry for State Security of the German Democratic Republic.
Including this picture of what appears to be a Ruhla chronograph watch fitted with a tiny microphone.
On second thought, it may well be some Swiss watch from the 1950-60s or even from the 1940s.

Bitte sehen uhren replika oder Replica Franck Muller