Back to Search
Oyster 70
Designer: Holman & Pye  ·  Builder: Oyster Marine Ltd.  ·  First built: 1996
+ Add to Compare
About the Oyster 70

Purpose-built for serious bluewater cruising, the Oyster 70 represents one of the most capable and refined offerings from the prestigious British yard Oyster Marine, a builder long synonymous with quality offshore sailboats. Designed to carry experienced cruisers and their crews comfortably across oceans, this flagship-class vessel sits at the larger end of the Oyster range and reflects the brand's commitment to combining seakeeping performance with luxurious liveaboard comfort. Oyster's reputation has been built over decades on producing boats that are as dependable in challenging ocean conditions as they are enjoyable to sail in calmer waters, and the 70 embodies that ethos at an elevated scale. Buyers are typically drawn to this model for extended offshore passages and world cruising itineraries, where the boat's build quality, systems integration, and generous range become genuine advantages rather than marketing talking points. For anyone researching a vessel capable of handling both long ocean crossings and relaxed coastal sailing without compromise, the Oyster 70 deserves serious consideration as one of the more respected names in premium bluewater yachting.

Core Dimensions
LOA (Length Overall) 70.00 ft / 21.34 m
LWL (Waterline Length) 58.00 ft / 17.68 m
Beam 17.25 ft / 5.26 m
Max Draft 9.08 ft / 2.77 m
Displacement 91,000.00 lb / 41,277 kg
Ballast 24,600.00 lb / 11,158 kg
Sail Area (Reported) 2,993.00 ft² / 278.06 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Cutter
Construction FG
Designer Holman & Pye
Builder Oyster Marine Ltd.
First Built 1996
Last Built 1999
Related Sailboats ["Swan 70" · "Swan 68" · "Oyster 675" · "Baltic 73" · "Cnb 66"]
Owner Reviews

No owner reviews yet — be the first to share your experience with this boat.

Known Issues & What to Watch For

No known issues documented for this model yet.

Own or have surveyed a Oyster 70? Submit a known issue

Performance Ratios
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
23.78
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
51.48
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
1.54
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 10.21
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 3.0
How It Compares

vs. Baltic 73, Oyster 675, Swan 68

This boat Similar boats
Dimensions
LOA
Oyster 70 ★
70.0 ft
Baltic 73
73.2 ft
Oyster 675
69.1 ft
Swan 68
67.7 ft
LWL
Oyster 70 ★
58.0 ft
Baltic 73
60.7 ft
Oyster 675
60.1 ft
Swan 68
54.7 ft
Beam
Oyster 70 ★
17.3 ft
Baltic 73
18.0 ft
Oyster 675
18.5 ft
Swan 68
17.8 ft
Displacement
Oyster 70 ★
91 lbs
Baltic 73
77 lbs
Oyster 675
82 lbs
Swan 68
88 lbs
Ballast
Oyster 70 ★
24 lbs
Baltic 73
29 lbs
Oyster 675
Swan 68
35 lbs
Sail Area
Oyster 70 ★
2 sq ft
Baltic 73
2 sq ft
Oyster 675
Swan 68
Performance
SA / Displacement (higher = more powerful)
Oyster 70 ★
23.8
Baltic 73
22.0
Oyster 675
Swan 68
Ballast / Disp (higher = stiffer)
Oyster 70 ★
Baltic 73
38.6 %
Oyster 675
Swan 68
40.0 %
Comfort Ratio (higher = more comfortable offshore)
Oyster 70 ★
51.5
Baltic 73
39.3
Oyster 675
Swan 68
Capsize Screening (lower = safer)
Oyster 70 ★
1.54
Baltic 73
1.70
Oyster 675
Swan 68
Displacement / Length (lower = lighter)
Oyster 70 ★
Baltic 73
154
Oyster 675
170
Swan 68
240
Hull Speed
Oyster 70 ★
10.2 kts
Baltic 73
10.4 kts
Oyster 675
Swan 68
Find a Oyster 70 For Sale