Greeks in the 1870s Sweden Emigration Registers has a new database titled "SWEDEN, EMIGRATION REGISTERS, 1869-1948

I did a search on Country of Birth.  It is transcribed in Swedish, so I searched on "Grekland" which is Greece in Swedish.

There were 3 people with obvious Greek names.

G. C. Chemelis - birth abt 1840 - ship departure date 24 May 1872

Emmanuel Malias - birth abt 1858 - ship departure date 7 Sept 1877

Georges Otza - birth abt 1859 - ship departure date 7 Sept 1877

You will be able to view the actual Emigration Register and a typed transcription of the record.