Sea Water Phantom 400

The Seawater Phantom 400 is one of the most renowned Italian semi-rigid boats in its category. Designed to deliver exceptional offshore performance while maintaining a high level of comfort, it is now a benchmark among demanding boaters seeking a versatile, fast vessel capable of handling the most varied navigation conditions.

This unit features a 2011 hull combined with three Yamaha V8 350 horsepower engines installed in 2015. With a total power of 1,050 horsepower and only 950 hours of operation, this configuration guarantees remarkable performance. The top speed approaches 60 knots while comfortable cruising speed ranges between 30 and 35 knots.

Thanks to its deep V offshore hull, the Phantom 400 offers exceptional stability and a particularly comfortable sea passage, even under more demanding conditions. This navigation quality is one of the reasons behind Seawater's reputation in the premium semi-rigid market.

The exterior space is perfectly optimized. The boat has a large bow sunbathing area, a spacious aft cockpit with a table, numerous seating options, and smooth circulation around the central console. Passengers enjoy a generous space, ideal for day trips, anchorages, or quick transfers.

The level of equipment has been significantly upgraded through a major refit carried out in 2026, representing more than €30,000 in investment. Works include a major mechanical overhaul, installation of a new Simrad GPS, a new carbon mast, new canvas covers, and a high-end drawer refrigerator recently installed.

Onboard comfort is enhanced by a Fusion audio system combined with a powerful amplifier that allows full enjoyment during days at sea. A cabin under the console with marine toilet completes the layout and provides additional comfort for long outings.

Very well maintained and featuring many recent equipment additions, this Seawater Phantom 400 represents a rare opportunity in the premium semi-rigid market. Its combination of performance, build quality, comfort, and equipment makes it a perfect boat for quick navigation across the Mediterranean.