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“Matilde 7”Antonini Navi delivers first Seamore 34

Martin Hager

 · 31.07.2026

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Photo: Antonini Navi
The Italian shipyard Antonini Navi has handed over the 33.5-metre-long “Matilde 7” to its owner. The Seamore 34 model marks the shipyard’s entry into the steel yacht segment below 500 gross tonnes. With Hydro Tec as the exterior designer and Hot Lab responsible for the interiors, the yacht combines a working vessel aesthetic with a modern crossover concept.
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Antonini Navi has announced the delivery of the 33.50-metre-long “Matilde 7”. This compact displacement yacht, with an interior volume of 299 gross tonnes, is the first vessel in the new Seamore 34 series and was launched back in March 2026. The shipyard developed the platform entirely in-house, thereby entering the segment of steel yachts under 500 gross tonnes for the first time. Hydro Tec is responsible for the exterior design and structural details, whilst the Milan-based studio Hot Lab designed the interior.

Crossover design with the character of a workboat

The exterior design takes its cue from professional workboats and reinterprets their elements. A vertical bow, sharply recessed bridge windows, sculptural forms and pronounced bridge wings characterise the silhouette. The design combines contemporary crossover aesthetics with functional design elements. The main deck offers over 150 square metres of usable interior space. The upper deck also offers around 160 square metres of outdoor space. The layout focuses on creating a seamless connection between indoor and outdoor areas.

Hot Lab’s material concept

Hot Lab has developed an interior design concept that combines classic and modern stylistic elements. Teak, pastel shades and ribbed surfaces characterise the choice of materials. The design aims to make the most of natural light and maximise the sense of space. The selected materials are intended to strike a balance between timeless elegance and a contemporary design language. Large windows run the length of the living areas, enhancing the impression of spaciousness on board.

Performance and comfort

The sea trials prior to delivery confirmed a cruising speed of 10 knots and a top speed of 14 knots. At cruising speed, the “Matilde 7” has a range of over 4,300 nautical miles. The shipyard engineers highlight the low noise and vibration levels. In the owner’s cabin, a level of just 39.2 dB(A) was measured whilst the systems were running at anchor. These figures are intended to ensure a high standard of comfort even during longer crossings. The steel construction contributes to a smooth ride whilst also enabling robust long-distance performance.

Platform for semi-custom series

Antonini Navi designed the Seamore 34 as the starting point for a future semi-custom range. This approach combines customisation options with predictable build times. By entering the under-500 GT segment, the Italian shipyard is tapping into a new market niche between compact motor yachts and larger custom projects.

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Martin Hager

Martin Hager

Editor in Chief YACHT

Martin Hager is editor-in-chief of the titles YACHT and BOOTE EXCLUSIV and has been working for Delius Klasing Verlag for 20 years. He was born in Heidelberg in 1978 and started sailing at the age of six, in an Opti of course. This was soon followed by 420s, Sprinta Sport and 470s, which he also sailed on the regatta course with his brother. His parents regularly took him on charter trips through the Greek and Balearic Islands. Even at a young age, it was clear to him that he wanted to turn his passion for water sports into a career. After graduating from high school and completing an internship at the Rathje boatbuilding company in Kiel, it was clear that he did not want to become a classic boatbuilder. Instead, he successfully studied shipbuilding and marine engineering in the Schleswig-Holstein state capital and focused on yacht design wherever he could. His diploma thesis dealt with the “Testing of a new speed prediction method for sailing yachts”. In 2004, the superyacht magazine BOOTE EXCLUSIV was looking for an editor with technical and nautical background knowledge, a position that was perfect for Martin Hager. The application was successful and a two-year traineeship was arranged. After twelve years as an editor, the editorial team changed and he took over responsibility for BOOTE EXCLUSIV as editor-in-chief in 2017. After long-time YACHT editor-in-chief Jochen Rieker moved to the role of publisher, Martin Hager also took over the position of editor-in-chief of Europe's largest sailing magazine YACHT, which is celebrating its 120th anniversary this year, at the beginning of 2023. When he's not working on topics for the two water sports titles, Martin Hager likes to go out on the water himself - preferably with kite and wingfoil equipment or on a little after-work trip across the Alster.

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