Oyster Marine 675
Masthead Sloop · Fin w/bulb & Spade Rudder · First built 2015
A 21-metre masthead sloop featuring a deep 2.95-metre bulb keel and a high sail-area-to-displacement ratio for speed
Designed by Humphreys Yacht Design & Rob Humphreys.
- LOA
- Beam
- Draft (max)
- Displacement
- Hull type
- Fin w/bulb & Spade Rudder
See her sail
The Oyster Marine 675, on the water
The fleet's own footage — the truest look at how she really moves.
Footage from Sailing Florence
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
Her light displacement on a narrow beam gives 42 — a heavy, notably soft motion offshore.
1.71 — just under the 2.0 offshore line; her beam is modest for her weight.
170 — light for her waterline, so she is easily driven and quick to accelerate.
20.9 — plenty of sail for her weight; lively and quick to respond.
A capable offshore cruiser with an easy motion when the sea gets up.
- Heavier than ~91% of boats her size on file
- Draws more than ~80% of boats her size on file
- Beamier than ~94% of boats her size on file
Compared with 295 boats of the same type within a quarter of her length.
The living fleet
Sailed by the fleet
Where the fleet has filmed this boat.
The record
Full specifications
The complete reference set — tap any figure to switch between metric and imperial.
Boats like this, on the water
More boats like her, on the water
Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.
The family
Boats like this
Nearby designs by size, type, and era — worth a look alongside her.
Keep asking
The fleet has more to say
Search what's been said about the Oyster Marine 675, or ask a specific question — the answer comes back written out, with links to the moments it draws on.
The newsletter
New boats, new stories. Every week, everywhere.
One email from the fleet — boats newly added, videos newly analysed. No noise.