The Wellesley is a 56.15 m / 184′3″ luxury motor yacht. She was built by Oceanco in 1993.
With a beam of 9.2 m and a draft of 3.6 m, she has a steel hull and aluminium superstructure. This adds up to a gross tonnage of 646 tons.
She is powered by MTU engines of 1530 hp each giving her a maximum speed of 17 knots and a cruising speed of 14 knots. The Wellesley's maximum range is estimated at 6200 nautical miles.
The motor yacht can accommodate 12 guests in 6 cabins with an interior design by Donald Starkey and an exterior design by Gerhard Gilgenast.