Seebataillon = Navy Infantry
See:
https://de.wikipedia.org/wiki/Seebataillon or
https://en.wikipedia.org/wiki/Naval_Force_Protection_Battalion_(Germany)
The Seebataillon is an association of the navy of the Bundeswehr in Schleswig-Holstein. It forms together with the command special forces of the navy the marine infantry. The Seebataillon is stationed in the Preußer barracks in Eckernförde and is subordinate to the Einsatzflottille 1 in Kiel. With parts of the association in the naval base Eckernförde and the Hugo Junkers barracks in Old Duvenstedt is housed.
The soldiers of the naval battalion wear the navy beret with crossed carabiners in gold as a headgear.
List of German Berets
https://www.facebook.com/Bundeswehr.SchleswigHolstein/photos/vor-drei-jahren-wurde-das-seebataillon-in-eckernf%C3%B6rde-aufgestellt-und-zum-dritte/852803244873530/
and:
pictures found on Facebook:
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