The Sealine S390 is a 39-foot sports cruiser built around a simple promise: the feel of a convertible with the volume of a much larger boat. Two long sunroofs open the whole upper deck to the sky, and below them sits the largest cockpit in the class, with more than 4.5 square metres of foredeck lounging and an XL bathing platform. Sealine calls her the Sunsation, and on a warm day the description fits.
German-built in Greifswald by HanseYachts, she rides on twin Volvo Penta D4 sterndrives of 320 horsepower each, good for a comfortable high-twenties top speed and relaxed, efficient cruising. The real story is space. The S390 offers two upper-deck arrangements and seven lower-deck layouts, with a head, two cabins and a galley in the saloon, so an owner can configure her for weekending couples or a family of four.
Inside, the light-filled saloon and large hull windows make the boat feel open and airy, finished to Sealine’s clean, contemporary standard with a wide choice of materials. Launched as part of the refreshed Sport line shown at Cannes, the S390 competes hard on volume, versatility and value against pricier Mediterranean rivals. For a buyer who wants genuine usable space, open-air cruising and German build quality without a superyacht budget, she is one of the most sensible 39-footers on the market.
Length
11.99M
Beam
3.85M
Draft
Day Guests
8
Sleeping
4
Cabin
2
Cruise Speed
Max Speed
27KT
Fuel
Engine
2 x Volvo Penta D4-320 (320 hp) sterndrive
New Starting From
€431,600
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The S390 is powered by twin Volvo Penta D4 sterndrive diesels of 320 horsepower each, a sensible, well-proven package that returns a top speed in the high twenties and an easy, economical cruise. This is not a boat chasing headline speed; it is tuned for relaxed, long-legged days with low noise and vibration, helped by Sealine’s attention to insulation and the rigidity of a modern GRP hull. Sterndrive propulsion keeps the running gear tucked away for a cleaner wake and better low-speed handling, and the duoprop drives make docking straightforward. For most owners the standard engines will be ample; the reward is quiet, efficient cruising and sensible fuel bills rather than outright pace.
From outside, the S390 reads as a clean, modern sports cruiser with a low cabin profile and a long, glassy flank. The defining features are functional: two opening roofs in several configurations that transform the cockpit into an open deck, and a bathing platform engineered to extend the usable space aft and ease access to the water. The foredeck carries more than 4.5 square metres of lounging, unusual on a boat this size, and the side decks are kept walkable and secure. Large hull windows do double duty, lighting the cabins below and giving the profile its contemporary character. Every surface is shaped to serve sun, space or safety, with little styling for its own sake.
Below deck the S390 offers a head, two cabins and a galley in the saloon, with seven lower-deck layouts so the accommodation can be matched to how an owner actually cruises. The forward cabin serves as the master, with a second cabin and convertible saloon seating extending the berth count for a family or guests. Sealine’s signature is light: generous hull glazing and pale, contemporary finishes make the interior feel larger than the waterline length suggests. Materials, colours and textures are chosen from a wide configurator, so the boat can read as sporty and minimal or warm and residential. It is accommodation built for real weekends aboard, not just a token cabin beneath a day boat.
Living aboard is where the S390 makes its case. The cockpit, the largest in its class, flows into the bathing platform aft and up to the foredeck lounge forward, so the whole upper deck becomes one connected social space when the roofs are open. Up to three galley units can be specified on deck, keeping the cook in the company rather than tucked below. Aft bench seating and a stern cockpit table convert the space from dining to lounging in minutes. The emphasis throughout is outdoor living in the sun, with the interior saloon as a cool, bright retreat a step away. For entertaining at anchor or cruising with family, the layout is hard to fault.
The S390 is built in Greifswald by HanseYachts AG, one of Europe’s larger yacht manufacturers, which brings series-production quality control and a wide dealer and service network. Volvo Penta power keeps maintenance and parts straightforward across markets. The extensive layout and materials options mean two S390s can be specified very differently, so buyers should check each boat’s configuration against their needs. As a current-production model from an established marque, she should hold value better than boutique rivals, and the strong interior volume keeps her desirable on resale. For the owner, the proposition is clear: a lot of usable, light-filled boat, German build quality, and sensible running costs at a competitive price.
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