The Sedov,

originally named the Magdalene Vinnen II,

was launched in Kiel in 1921

at the Friedrich Krupp Germaniawerft at Kiel, Germany,

for the shipping company F. A. Vinnen & Co. of Bremen,

one of the largest German shipping companies

at the beginning of the 20th century.

The shipping company initially objected

to have an engine installed in the ship,

but the ship yard  successfully argued for an engine,

making the ship the first sailing ship

with auxiliary engine designed to modern principles.