Oceanco Y661 66m Refitted Superyacht for Sale in Monaco

Delivered in 2005 by Oceanco under project name Y661 and comprehensively upgraded through a refit programme culminating in 2025, this 66-metre custom motor yacht is an exceptional Northern European superyacht offering for buyers who demand pedigree construction, serious range, substantial guest capacity, and enduring design credibility. Built to Lloyd’s Register standards with naval architecture and exterior styling by Oceanco and interiors by Alberto Pinto, she combines the engineering authority of a leading Dutch yard with the refined elegance of one of the most recognised names in yacht interiors. Now offered in Monaco, she presents as a rare, globally capable superyacht with both charter relevance and true private ownership stature.

Construction, Profile & Superyacht Presence
Built with a displacement steel hull and aluminium superstructure, the yacht measures 66 metres in overall length with a commanding 11.9-metre beam and 5-metre draft. Her internal volume of approximately 1,801 GT and displacement of around 1,554 tonnes place her among the genuinely substantial yachts in her category, providing exceptional internal space, outstanding deck proportions, and the carrying capacity expected from a serious ocean-going vessel. The white hull and superstructure, elegant sheerline, and canoe stern create a timeless exterior profile that remains relevant and distinguished in any anchorage. Teak-laid decks span a three-deck arrangement, crowned by a certified helipad integrated into the sundeck, adding both operational value and elite lifestyle appeal.

Power, Range & Long-Distance Capability
Propulsion is delivered by twin Deutz SBV 12M628 diesel engines, each producing 3,016 horsepower for a combined output of 6,032 horsepower. Through a conventional twin-screw shaft-drive arrangement, these engines provide a maximum speed of 15 knots and a comfortable cruising speed of around 13 knots. Supported by approximately 180,000 litres of fuel and 65,000 litres of freshwater, the yacht offers a reported transoceanic range of about 4,500 nautical miles. This makes her highly capable for extended private cruising programmes, intercontinental repositioning, and serious charter itineraries without constant port dependence. Bow and stern thrusters improve harbour control, while Quantum XT stabilisers greatly enhance comfort both underway and at anchor.

Engineering Depth & Technical Reliability
Generator capacity is configured to support full hotel loads, including air conditioning, cinema systems, lighting, galley service, and guest amenities, while noise-reduction measures and insulation help maintain low vibration levels across guest areas. Engine room layouts prioritise accessibility, with systems such as gearboxes, cooling circuits, exhaust routing, and filtration arranged for professional service and long-term reliability. Electrical infrastructure includes shore power integration, battery banks, distribution panels, and inverter/charger systems designed to maintain continuous operational performance. Plumbing and utility systems include freshwater pumps, heaters, bilge arrangements, and black and grey water handling consistent with large-yacht standards. Fire suppression equipment, extinguishers, and certified safety appliances further support safe, compliant operation.

Guest Accommodation & Signature Interior Style
Accommodation is arranged for up to 16 guests across 8 cabins, while 10 crew cabins support up to 18 crew, allowing for top-tier hospitality and operational independence. The full-beam master suite includes a private lounge, office space, and integrated entertainment systems, creating a true owner’s apartment within the yacht. A large VIP suite is complemented by four double cabins and two twin cabins, giving the layout flexibility for family cruising, corporate use, or premium charter deployment. Alberto Pinto’s interior styling brings together macassar, ebony, sycamore panelling, and nickel accents to create a rich but welcoming atmosphere, elevated further by expansive picture windows in the main saloon. Social interiors include a dedicated cinema room, a skylounge with bar and dual seating areas, and formal and informal dining spaces suited to larger groups.

Deck Spaces, Helipad, Pool & Leisure Assets
The exterior offering is extensive and genuinely high-end. The sundeck features a 19,000-litre scallop-shaped swimming pool with stepped waterfall features, adjacent to a glass-sided Jacuzzi and surrounded by generous entertainment space. The certified helipad transforms into a major deck terrace when not used for aviation operations, enhancing both lifestyle flexibility and event appeal. A beach club and swim platform provide direct water access, while the tender garage houses an impressive fleet including a 12m Wajer chase tender, 9.7m Royal Denship limousine tender, 8.3m Royal Denship sports tender, 5.5m Nautica jet RIB, and 4.8m Zodiac rescue boat. Additional amenities include a gym, spa facilities, sunpads, satellite television, video-on-demand, Wi-Fi, and full air conditioning throughout.

Registry, Due Diligence & Ownership Framework
Registered under the Cayman Islands flag, the yacht benefits from a globally recognised ownership and cruising framework. Her documented build history begins with keel laying in late 2002 and culminates in delivery in April 2005 following full sea trials, supporting clear provenance for due diligence review. Radar, GPS, AIS, autopilot, chart plotters, and integrated communication systems form part of the navigation suite for safe long-distance passage planning. Regular refit work, machinery servicing, antifouling, and equipment upgrades have preserved both her structural integrity and operational status, while the 2025 upgrade cycle reinforces her continuing market relevance.

Acquisition Value & Strategic Potential
From a buyer’s perspective, this yacht combines exactly the qualities that remain difficult to replicate quickly or cost-effectively in today’s market: Dutch build pedigree, Lloyd’s-compliant structure, large guest capacity, helipad capability, strong charter potential, and serious offshore range. Standard acquisition procedure would typically involve formal inspection, independent survey, sea trial, escrow deposit, and staged payment completion prior to delivery. For private owners seeking a flagship global cruiser, or investors targeting premium charter returns with a high-recognition platform, this Oceanco Y661 stands as a genuinely compelling superyacht acquisition.

Request Confidential Viewing & Full Specification
Buyers looking for a proven Dutch-built superyacht with helipad, pool, substantial charter appeal, and refit-backed readiness should review this 66m Oceanco without delay. Enquire now for the complete technical file, refit summary, inspection arrangements, and purchase procedures in Monaco.