SYNTHESIS 66 — 139' Feadship Superyacht for Sale

SYNTHESIS 66 is a 139-foot (42.4m) Feadship built in 1982, a proud member of the Feadship Heritage Fleet with exterior lines by De Voogt and a fully reimagined interior by Boutsen Design of Monaco. Her steel hull, 347 GT, and 13-knot top speed reflect the classic long-range Feadship formula. She accommodates 10 guests across 5 staterooms, attended by a crew of 9.

Between 2020 and 2022, she underwent an extensive technical and cosmetic refit at Monaco Marine, and her owner has continued investing since. The exterior received new teak decks, a complete repaint, and modernized deck spaces suited to today's cruising lifestyle. Inside, Boutsen preserved the original woodwork that gives a classic Feadship its soul while updating everything around it for contemporary comfort. The result is increasingly rare: a heritage Feadship that feels current without feeling like a museum piece or a gutted-and-rebuilt compromise. For a buyer who understands what a De Voogt-drawn steel hull from this era actually represents and who values a yacht that has been kept in immaculate condition from her berth in Monaco, SYNTHESIS 66 is ready for private use or charter.

SYNTHESIS 66 is currently located in Monaco in Monaco, La Colle.

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Asking Price

€16,500,000 EUR

($19,350,208 USD EST.)

Length 139' / 42.4m

Beam 26' / 7.9m

Draft 8' / 2.5m

Builder FEADSHIP

Built / Refit 1982 / 2023

Hull Steel

Gross Tonnage 347