48m custom Rossinavi explorer yacht hits the water as Seazens

Italian shipyard Rossinavi has announced the launch of its 47.5-metre "adventure" yacht Seazens, previously known as Project Berserk 47, from its facilities in Viareggio. 

 The new build has been kept notably under wraps throughout construction, with the yard only revealing her first renderings in March last year. According to BOATPro, she was sold in a deal with Italian Yacht Group in 2023. Construction began the following year in May, with the broker remaining as owner's representative throughout the build process.

She was listed for sale earlier this year, in July, under a joint central agency with Christie Yachts and Italian Yacht Group, asking €39,500,000. 

Exterior design for the 47.5-metre build was completed in-house, while Amsterdam-based design firm The Touch Studio is behind her interiors. Constructed in steel and aluminium with a sub-500GT volume, Seazens was designed for exploration, offering long-range cruising capabilities paired with a flexible onboard layout.

Images now reveal the yacht's "robust" explorer profile, defined by a high bow, substantial volumes and a wide aft deck - a characteristic typical of explorer yachts – painted in contrasting shades of grey to accentuate her presence on the water. With extensive cruising on the brief, the yard highlighted Seazen's generous toy-carrying capability, dedicated storage areas and versatile multifunctional spaces that can adjust to different occasions.

This is most notable in her main deck cockpit, which accommodates two large tenders (measuring 11.2 metres and 6.4 metres) during cruising and can transform, with loose furniture – stored in a handy lower deck storage area – into a comfortable outdoor lounge when at anchor. A concealed crane with an 8.6-metre boom and a lifting capacity of up to 5.5 tonnes serves the tenders' launch and recovery, retracting when not in use into a dedicated hatch that closes flush with the deck. 

Outdoor leisure is also a focus on the upper deck, with its loose outdoor seating, and on the sundeck, which is arranged with a bar, sunpads and a dip pool forward and al fresco dining protected by sliding wind panels. The upper deck is also worthy of note, featuring a skylounge with panoramic views and sliding doors aft. Closer to the water, an indoor beach club incorporates a gym, sauna and shower.

The interior layout can accommodate 11 guests in five cabins, including a full-beam owner's suite on the main deck with a walk-in wardrobe, separate lounge space and steam shower. Two of the four guest cabins on the lower deck can be converted into a full-beam VIP with a private lounge if required, while further quarters on the same deck sleep a crew of nine. 

Seazens' interior decor remains private for now, though renderings previously revealed a light and delicate style, incorporating a neutral colour palette of cream, beige and gold. Design details appeared Japanese-inspired, with bonsai trees and statement silk wall coverings that feature painted pine trees and koi fish. 

“With the launch of Seazens, we are bringing a vision to life: a yacht designed to bring together tenders, water toys and equipment, offering endless possibilities for enjoying the sea," said Federico Rossi, chief operating officer of Rossinavi. "She is our first adventure yacht, conceived to experience the sea in all its different ways."

Twin CAT engines are expected to propel the explorer to a maximum speed of 15 knots and a range of 4,000 nautical miles when cruising at 10 knots. 

BOATPro data reveals Rossinavi to have nine yachts on order or currently under construction. The yard recently shared the first interior images of its full-custom new build, Heed, following her world debut at this year's Monaco Yacht Show.