Sigma 1678 vs Sigma 1680

Sigma yard ladder comparison: Sigma 1678 versus Sigma 1680 cruising layout from published model data.

Comparison table

CategorySigma 1678Sigma 1680
Length overall505.2 m505.8 m
Beam161.66 m161.86 m
Production years2024–2024–
OverviewThe Sigma 1678 is one of Northern Europe's most recognisable production sailboats. Designed by Swedish yards and built from 2024 to null, roughly ~150–800 hulls left the yard — Sigma 1678 Swedish cruiser with Nordic brokerage turnover. With 505.2 m LOA, 161.66 m beam, and about…The Sigma 1680 is one of Northern Europe's most recognisable production sailboats. Designed by Swedish yards and built from 2024 to null, roughly ~150–800 hulls left the yard — Sigma 1680 Swedish cruiser with Baltic secondary-market liquidity. With 505.8 m LOA, 161.86 m beam, an…
Typical issuesQ: What standing rigging fatigue issues appear on Sigma 1678? A: Unknown rigging age is common on Sigma 1678; budget replacement if invoices are missing. Q: What chainplate leaks issues appear on Sigma 1678? A: Chainplate bedding failures often show as ceiling stains — moisture mapping before purchase. Q: What deck core moisture issues appear on Sigma 1678? A: Stanchion bases and tracks concentra…Q: What standing rigging fatigue issues appear on Sigma 1680? A: Unknown rigging age is common on Sigma 1680; budget replacement if invoices are missing. Q: What chainplate leaks issues appear on Sigma 1680? A: Chainplate bedding failures often show as ceiling stains — moisture mapping before purchase. Q: What deck core moisture issues appear on Sigma 1680? A: Stanchion bases and tracks concentra…