Sirona III is a 56.4 m / 185′1″ luxury motor yacht. She was built by Oceanfast in 2004.
With a beam of 10.3 m and a draft of 3 m, she has a steel hull and aluminium superstructure. This adds up to a gross tonnage of 917 tons.
She is powered by Caterpillar engines of 1750 hp each giving her a maximum speed of 16 knots and a cruising speed of 12 knots. Sirona III's maximum range is estimated at 5500 nautical miles.
The motor yacht can accommodate 10 guests in 5 cabins with an interior design by Craig Beale and an exterior design by Jon Bannenberg.