Brundall Office:01603 713434

Seamaster 23



LOA (Metres/Feet): 7.04m / 23' 1"
Draft (Metres/Feet): 0.74m / 2' 5"
Beam (Metres/Feet): 2.7m / 6' 6"
Air Draft (Metres/Feet): 1.88m / 6' 2"
Berths: 4
Type: Motor Cruiser
Fuel: Diesel
Reference: NYH121992

Seamaster 23 – 1975 – powered by a single BMC 1.5 36hp diesel engine through an Enfield sterndrive.  4 berth accommodation.  Specification to include; Garmin depth gauge/GPS, Eberspacher heating, shore power, holding tank, folding windscreens.  This is a lovely example of these popular cruisers with a low air-draft. BSC May 2026


Seamaster 23 for sale

Boat Reference Number: NYH121992
Year Built: 1975
LOA (Metres): 7.04m
Draft (Metres): 0.74m
Beam (Metres): 2.7m
Air Draft (Metres): 1.88m
Vessel Location: NYA HORNING
Cabins: 1
LOA (Feet): 23' 1"
Draft (Feet): 2' 5"
Beam (Feet): 6' 6"
Air Draft (Feet): 6' 2"
Berths: 4
Toilets: 1
Hull Construction: GRP
Fuel: Diesel
Showers: 0
Hull Type: Displacement
Engine Manufacturer: B.M.C.
Number of Engines: 1
Drive Type: Sterndrive
Type: Motor Cruiser
Make: Seamaster
Yacht Type: Brokerage


  • Calor Gas 4 burner gas hob, oven and grill
  • Domestic fridge with Freezer compartment
  • Sink with hot and cold water through a mixer tap
  • Ample storage space

Deck Equipment

  • Ropes
  • Fenders
  • Stainless steel four basket fender holder
  • Wooden hand rails on cabin roof
  • Full canopy (x 2)
  • Anchor
  • Mudweight
  • Folding windscreens
  • Folding mast

Mechanical / Electrical

  • 1 Wortham Blake diesel engine (2783 engine hours indicated)
  • Enfield stern-drive
  • Shore power
  • Auto/Manual bilge pump
  • Fuel gauge
  • Engine temperature gauge
  • Exhaust temperature gauge
  • Depth gauge/GPS
  • Barometer
  • Clock
  • Tide indicator
  • Windscreen wiper
  • Ocean electric flush toilet to holding tank
  • Eberspacher warm air heating
  • 2 Platinum Leisure Plus battery
  • 2 SFL 110ah engine battery
  • Battery charger
  • 2 solar extractor fans


  • Seamaster 23

Safety Equipment

  • 1 x 2kg Powder fire extinguisher to helm
  • 1 x 2kg Powder fire extinguisher to cabin
  • Fire blanket to galley
  • Life Saver carbon monoxide alarm
  • BSC to 1/5/2026

Service History

  • Serviced at Ferry Marina July 2021
  • Serviced by Sabena August 2022 (with alternator belt change)
  • Anti-fouled august 2022



The company normally acts as broker for the vendor who unless otherwise stated is not selling in the course of a business. Whilst every care has been taken in the preparation of these particulars the correctness is not guaranteed and they are intended as a guide only and do not constitute a part of any contract. A prospective buyer is strongly advised to check these particulars and where appropriate and at his own expense to employ a qualified marine surveyor to carry out a survey and/or to have an engine trial conducted which if conducted by us shall not imply any liability on our part.

Make an Enquiry about the Seamaster 23



+44 (0) 1603 713434

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Unfortunately this boat is no longer available

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