Petula's version of
Sailor (1961) is about the lover of a sailor who is exhorting him to "stop your roving" and return to her. It's considerably different from Lolita's 1960 hit
Seeman, deine Heimat ist das Meer (Sailor, your home is the ocean), in which the sailor's lover is giving up on him because his home is the sea, his love is his ship and he is addicted to traveling to distant places. (Incidentlly, Lolita is from Austria, which has no seacoast).
Marin (1961) is more or less a translatin of Lolita's version, yet a blond girl has not given up on the sailor and is waiting for him to return.
Speaking of German tunes popularized here, Elvis Presley recorded “Wooden Heart,” originally known as “Muss i denn.” It was a favorite with the German navy, played as their ships sailed away to war, a century before Elvis sang it.