The name was chosen in honor of Amadeus VI, Count of Savoy, the so-called “Green Count.” She was launched in 1923 at the shipyard of William Beardmore and Company in Dalmuir, Scotland. The ship was a transatlantic liner of 18,761 GRT, ordered by the Italian shipping company Lloyd Sabaudo Line in Genoa. The first-class accommodations had a capacity of 450 passengers, second class was 200 passengers and third class (emigrants rooms) was 1,780 passengers. In addition, 400 crew members were on board. The ship was composed of 10 decks. The interiors of public rooms were designed in luxurious Italian classical styles. Her sister ship was the SS "Conte Rosso".