Prometej is a 45 m / 147′8″ luxury motor yacht. She was built by Galatz Cant Santiebul in 1957.
With a beam of 9.5 m and a draft of 3.6 m, she has a steel hull and steel superstructure. This adds up to a gross tonnage of 469 tons.
She is powered by Mitsubishi engines of 1050 hp each giving her a maximum speed of 14 knots and a cruising speed of 12.5 knots. Prometej's maximum range is estimated at 3200 nautical miles.
The motor yacht can accommodate 12 guests in 7 cabins with an interior design by Alberta Ferretti and an exterior design by Water Line.