0 2016 Seaward MY-42 For Sale | Grabau International Yacht Brokerage

2016 SEAWARD MY-42

£450,000 tax paid

CE Category-A, semi-displacement explorer yacht

General Information

Manufacturer/ModelSeaward MY-42
DesignerTT Boat Designs
Boat NameBounder
New or UsedUsed
Sale StatusAvailable
Tax/VAT StatusTax paid
LyingLymington, United Kingdom


LOA13.78m (45'0")
Beam3.96m (12'0")
Draft1.22m (4'0")
Hull ConstructionGRP
Engine2x Cummins QSB 6.7 425hp
Cruising SpeedNo data
Max Speed25 knots

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Lead Broker

Alex Grabau
Managing Director & Broker - International

+44 (0)1590 673715

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    CE Category-A, long-distance, all-weathers semi-displacement explorer yacht. Semi-custom build by Seaward, based on the legendary and well-proven TT Boats Designs Nelson 42 Mk II hull. Utterly unique and without peers in this growing market space.


    Launched in the Autumn of 2016 as a semi-custom build for an experienced Seaward Nelson boat owner, BOUNDER was explicitly configured for long-distance all-weather cruising. Her initial ‘shakedown’ cruise saw her travel up to Bergen, Norway, and the Baltic, where her iconic TT Boat Designs hull shape, economic semi-displacement cruising from her twin Cummins QSB engines, Humphree Active Ride system, and Quick gyroscopic zero-speed stabiliser ensured absolute comfort and security whether underway or at anchor.

    The Seaward MY-42, sharing the same Nelson 42MkII-derived hull form as vessels used by pilots, harbour masters, navies, and enforcement agencies, stands out in sea-keeping. Its rarity is further highlighted by its CE Category-A (Ocean) certification, a feature seldom found on motor yachts of this size. BOUNDER combines these exceptional sea-keeping abilities with luxurious interiors, featuring a spacious owner’s cabin layout, large forward cabin, lower dinette/saloon, and bright & airy upper saloon areas, making her perfect for a broad range of duties ranging from luxurious long-distance cruising for a couple, through to superyacht tender work for high-latitudes adventures.

    Pages could be written about BOUNDER’s unique features and abilities, but Dave Marsh of Motor Boat & Yachting Magazine summed her up beautifully by concluding, “There are the pretenders, the boats with blue hulls and chunky trawler-like styling that only appear to be serious seagoing boats. And then there are boats like the Seaward MY-42, which truly can venture forth any time in any weather. The 42 is the real McCoy.”

    BOUNDER’s specification highlights include:-
    • CE Category-A (Ocean)
    • TT Boat Designs semi-displacement hull form with central keel protecting stern gear from grounding
    • GRP hull with heavy-duty rubber fendering
    • Integral stern platform moulded into the hull so that the running length of the hull is maximized, further improving ease of powering, trim, handling and sea kindliness.
    • Coppercoat antifouling system
    • Treadmaster zero-maintenance side decks
    • Flexiteak zero-maintenance aft cockpit and bathing platform
    • Twin Cummins QSB inline 6-cylinder 425hp diesel engines with shaft drive, digital dash display and electronic throttles
    • Bronze rudders
    • Sleipner Sidepower proportional speed bow and stern thrusters
    • Humphree Interceptor Active Ride control trim system
    • Quick MC2X 16K AC Anti-Roll zero-speed gyroscopic stabiliser.
    • Empirbus NXT CAN-bus power networking and distribution with Seaward Yacht control digital touch-screen switching screen.
    • 24vDC domestic circuits with recently-replaced batteries
    • Victron Quattro 200A automatic battery charger with integral 8,000w inverter
    • Cummins Onan 8MDKBW 8kVa 220vAC diesel generator
    • Raymarine navigation instruments with twin HybridTouch screens at helm, open-array radar scanner, AIS transponder, wind, speed and depth transducers with i70 multi-repeaters, auopilot with rotary control head and aft mooring camera integration to plotter screens
    • Teak interior joinery throughout with light satin-varnish finish
    • Alcantara upholstery
    • Corian and Avonite countertops
    • Flexiteak flooring with carpeting in upper deckhouse
    • Quooker boiling water tap supply at galley
    • GN Espace OceanChef stove plus Miele microwave
    • Twin large-capacity top-opening fridge/freezers, front draw-opening stainless steel fridge and dedicated wine-fridge
    • Raritan Elegance 24vDC electric freshwater flushing with selectable sea-water flushing valve marine toilet.
    • Pioneer DAB radio/CD player with sub-woofer and internal/external speakers
    • Eberspacher Airtronic 5 diesel-fired air-heating system to cabins, heads compartment and aft cockpit.
    • Ribeye RIB tender with Yamaha 2.5hp 4-stroke outboard engine and Simpson snap davits
    • Lewmar V3 windlass with stainless steel anchor, stainless chain, remote control and chain counter at helm

    UK-VAT paid, privately used and in only her second ownership, BOUNDER is now seriously for sale as her owners are looking to consolidate their sizeable fleet.


    The previous owner of “BOUNDER” was an experienced yachtsman that commissioned her from new and was thoroughly involved in the build. Specification included significantly upgraded systems and specifically soundproofing. “BOUNDER” was his second Seaward and he kept her in absolutely immaculate condition, maintained by a professional skipper. We were thoroughly smitten by her sea kindly motion, comfort and build quality as we upgraded from planning-hulled motorboats. However busy diaries have kept us from making time to be afloat during our ownership and “BOUNDER” is now offered in pristine condition.


    This rugged Seaward 42 was launched in late 2016 and has since proved time and again her mettle in seas that would challenge any vessel. ‘BOUNDER’ was specified by her original owners to travel long distances in comfort, with a view, particularly, to explore the North of Scotland, Norway and the Baltic; a trip that ‘BOUNDER’ successfully took in her stride in 2017. Boasting a technical specification that includes long range additional fuel tanks, large capacity generator and inverter system, Gyroscopic stabiliser and Humphree active ride control interceptors, ‘BOUNDER’ is a ‘go anywhere’ explorer.

    No compromise is made in comfort however, ‘BOUNDER’s generous options list also includes a high spec galley, ‘Quooker’ hot water system and a capacious freezer; her bunks are provided with proper sprung mattresses and the heads has a powerful, hot shower and electric, fresh water flush toilet.


    The Seaward 42 is an exceptional seagoing craft designed for seriously intrepid boaters who still want to do 25 knots…

    …If £580,000 (note – BOUNDER’s original invoice cost was in excess of £730,000 and her replacement cost today would be upwards of £900,000) and upwards seems like a lot of money to pay for a boat with just a single sleeping cabin forward, then my test convinced me of the very opposite; that the 42 actually represents value for money when you take into consideration the high degree of customisation on offer and the outstanding practical detailing that’s clearly the result of obsessive compulsive disorder at work somewhere in the company…

    …One of the key things that separates the intrepid 42 from a displacement plodder from the likes of Nordhavn is its excellent turn of speed. Our boat reached 25.5 knots with its owner specified 425hp Cummins… Given how soft riding the 42’s Nelson pilot boat form is, here’s a boat with the potential to undertake rapid transit even when it’s rough outside.

    That said, its form also lends itself to fuel efficient cruising at single figure displacement speeds, courtesy of a long deep keel that stops it from wandering and helps to protect all the sterngear.


    There are the pretenders, the boats with blue hulls and chunky trawler-like styling that only appear to be serious seagoing boats. And then there are boats like the Seaward 42, which truly can venture forth any time in any weather. The 42 is the real McCoy.

    Motor Boat & Yachting - 2016



    RCD Status:
    • Our understanding is the yacht conforms with the essential safety requirements of Directive 94/25EC (Recreational Craft Directive) and is categorised A – “Ocean” for 12 persons on board.

    Hull, Deck & Superstructure Construction:
    • Blue GRP hull and white superstructure, with integrated aft bathing platform for increased waterline, running length and aft buoyancy.
    • Grey Treadmaster diamond-grip laid to foredeck & side decks.
    • M4 black rubber D-section protective fendering to hull topsides.
    • Synthetic Flexiteak laid to bathing platform, aft cockpit and aft cockpit steps – coloured as per teak with black caulking.
    • CopperCoat to underwater hull with Hempel Polygloss White boot-top.
    • Air draft: 13’11” / 4.25m including antenna mast


    Engines & gearboxes:
    • 2x Cummins QSB 6.7 litre inline 6-cylinder, common-rail, direct fuel injection, turbo-charged and aftercooled diesel engines producing 425HP (418HP @ 3000RPM)
    • Fresh water engine cooling via raw water intakes and heat exchangers
    • ZF 85A 2.5 ratio reduction gearboxes.
    • Central screen displaying digital engine information, fuel and other diagnostic information.
    • Single lever digital gear/throttle controls
    • Remote Reverso electric engine oil change pump.
    • Machinery space ventilation and lighting

    Maintenance & Performance:
    • Engine last serviced: October 2023
    • Engine hours: approx. 620 as of Spring 2024
    • Cruising speed - approx. 18 knots
    • Max speed – approx. 25 knots
    • Range at cruising speed – approx. 500Nm (substantially more at displacement speeds)

    Propulsion & Steering:
    • Conventional shaft drive via homokinetic coupling with water-lubricated PSS shaft seals (2022).
    • 2.25” Marinemet 25 propellor shafts.
    • 5BLH 26 x 30 5-bladed propellors.
    • Ambassador Marine AM20 rope cutters fitted.
    • Hydraulic steering with constant running pump set.
    • Twin bronze rudder blades
    • Humphree Interceptor Active Ride control trim system, with Humphree digital display.
    • Sleipner 24vDC proportional speed tunnel bow thruster
    • Sleipner 24vDC proportional speed retractable stern thruster

    • Quick MC2X 16K AC Anti-Roll zero-speed gyroscopic stabiliser with 16,350Nm output torque


    Voltage systems:
    • 24vDC and 12vDC domestic systems with 24vDC start circuits (12vDC for generator) and 220vAC via shore-power, generator or inverter.

    DC Switching System:
    • Empirbus NXT CAN-bus power networking and distribution.
    • Seaward Yacht control digital touch-screen switching screen.

    Battery Banks:
    • 4x 110Ah 12vDC service batteries joined in parallel and series to supply 220Ah @ 24vDC in port battery at engine bay (new 2022).
    • 2x 110Ah 12vDC engine start batteries joined in parallel and series to supply 110Ah @ 24vDC in starboard battery at engine bay (new 2022).
    • 2x 110Ah 12vDC bow thruster and windlass batteries joined in parallel and series to supply 110Ah @ 24vDC batteries at forward cabin under berth (new 2022).
    • 1x 40Ah 12vDC battery for generator start in lazarette (new 2022).
    • Victron digital battery monitoring.
    • Battery parallel switching.

    Charging / Inverter:
    • Victron Quattro 24V/8000VA/200 200A automatic battery charger with integral 8,000w inverter

    • Lecce 8RG3081 80A 24vDC high-output regulated alternators to both engines

    • Cummins Onan 8MDKBW 8kVa 220vAC diesel generator
    • Generator hours – approx. 210 as of Spring 2024

    Other Electrical:
    • 220vAC shore power with Marinco 16amp connector, RCD circuit breaker and shore power cable
    • Galvanic isolator
    • 12vDC electric sockets
    • 220vAC sockets throughout


    Fresh Water:
    • 24vDC pressurized water pump for supplying fresh water
    • Hot water supply via engine calorifier and 220vAC immersion heater element in hot water tank heated by shorepower or generator
    • Quooker boiling water tap supply at galley
    • Seagull water filter to galley

    Bilge Pumps:
    • Electric monitored bilge pump system (10 Rule units) with float-switches & alarms to helm on touch-screen.
    • 3 to lazarette, 4 to engine bay and 3 to forward bilge.
    • Scavenging manual bilge pump at aft cockpit.

    Black & Grey Water:
    • Heads discharge to tank or to sea.
    • Grey water discharges to sea.

    Gas System:
    • 2x 907 gas bottles carried in ventilated locker at aft starboard cockpit
    • BEP Marine gas detector/valve at companionway panel.


    • Total fuel capacity approx. 2,710 litres consisting of 2x internally moulded keel tanks of approx. 945 litre capacity each plus 2x wing tanks of approx. 410 litres each.
    • Tanks fitted with splash-stops fitted to fuel fillers to prevent spillage.
    • Fuel manifold with switchable cross-flow valves for fuel supply selection.
    • Dual Racor filtration with clear bowls and electric fuel transfer system.
    • Filling through wing tanks, with remote fuel valves at main helm and digital level indicators at console screen.
    • Manual fuel shut-off handles fitted aft of wheelhouse.

    Fresh Water:
    • Total water capacity approx 700 litres in 2x 350 litre tanks forward of machinery space

    Holding Tanks:
    • Approx 350 litre black water tank capacity
    • Holding tank discharges to sea beneath waterline or via deck extraction point.


    • 2x Raymarine HybridTouch GPS radar chart plotter displays with integration to aft mooring camera system
    • Raymarine HD digital open-array radar scanner
    • Raymarine AIS transponder
    • 3x Raymarine i70 multi-displays
    • Raymarine wind, speed and depth transducers
    • Raymarine autopilot system with P70 rotary control head
    • Plastimo Contest 130 steering compass

    Communications Equipment:
    • Raymarine Ray63 VHF with DSC


    • GN Espace OceanChef 3 stainless steel gas oven with 3-burner gas hob
    • Miele 6022 220vAC microwave.
    • GN Espace Gastronorm A&B twin stainless steel sink
    • Quooker instant hot water tap
    • Large double top-loading fridge/freezer compartment in aft range.
    • Isotherm front-loading refrigerator.
    • Isotherm wine-cooling fridge below helm seat.

    • Raritan Elegance 24vDC electric freshwater flushing with selectable sea-water flushing valve marine toilet.
    • Sink with hot & cold pressurised fresh water supply
    • Separate thermostatic shower supply

    Heating & Ventilation:
    • Eberspacher Airtronic 5 diesel-fired air-heating system to cabins, heads compartment and aft cockpit.
    • 4 hooded ventilators to forward accommodation deckheads, 2 to wheelhouse deckhead.
    • Overhead opening deck-hatches to wheelhouse, forward cabin, dinette/galley and heads.

    • Pioneer DEH-X8700DAB DAB radio/CD player
    • Kenwood KSC-SW11 sub by main helm.
    • Pioneer speakers in saloon, lower dinette and owner’s cabin
    • Sony waterproof speakers in cockpit

    Interior Lighting:
    • LED overhead ships lighting throughout, with red/white selection.
    • Reading lights to forward cabins berths.


    Summary of Accommodation:
    • Up to 4 berths in owner’s double cabin, plus converting double in dinette. One large heads compartment with jack’n’jill access from owner’s cabin and dinette.

    Accommodation Finish:
    • High quality teak cabinetry with teak light satin-gloss varnish finish
    • Brushed steel door furniture and fittings
    • Flexi-Teak flooring to cabin and galley soles
    • Carpeting in saloon
    • Corian counters in galley
    • Avonite counters in heads
    • Royal Blue Alcantara upholstery
    • Sprung mattresses in owner’s cabin
    • Off-white vinyl headlinings
    • Oceanair Skyscreens with blackout blinds for deckhead hatches and side-ports
    • Curtains and covers for saloon windows

    Description of Accommodation from Forward:

    Owner’s Cabin
    • Twin single “V” berths with sprung mattresses with ventilating mesh beneath, two drawers under each berth.
    • Raised lockers to port and starboard, with bookshelf below, and hanging locker aft, with three drawers below.
    • Sealed port-lights, opening overhead hatch, reading lights and overhead LED lighting.
    • Loudspeakers to locker carcassing, and anchor locker with tinted watertight hatch to forward bulkhead.

    • En-suite heads/shower, featuring dual access doors from lower dinette, and forward cabin.
    • Electric marine wc.
    • Basin inset into grey Avonite work-top, with single-lever mixer tap.
    • Thermostatic shower with automatic pump-out.
    • Easy-clean GRP moulding with Flexi-Teak flooring.
    • Powered extractor fan with variable timer control. •
    • Sealed port-light with opening overhead hatch.
    • Shaver socket.
    • Heater vent.
    • Teak-trimmed stowage lockers

    Dinette / Lower saloon:
    • Raised horseshoe seating for four around varnished-teak table with fiddle on telescopic leg.
    • Infill cushion to create double berth.
    • Two sealed port-lights, opening overhead hatch and overhead LED lighting.
    • Drawer storage beneath table base, locker beneath forward seating and access hatch to Empirbus/helm circuitry.
    • Brushed steel clock and barometer.
    • Heater outlet vent.

    • Opposite dinette to starboard
    • Stainless steel gas oven hob
    • Microwave oven
    • Twin sinks with Quooker instant hot water tap
    • Top loading twin fridge/freezers
    • Front loading fridge

    • Three steps (with carcassed drawers) up to wheelhouse
    • Sprung damped helm and navigator seats with height-adjustable foot braces
    • Ratcheted locking sliding windows to port and starboard with cowling hood around outer frame
    • Triple double-glazed windscreens with heavy-duty Speich pantographing wipers
    • Saloon area with raised seating for four to starboard, and sideboard to port with drawer storage and glass/bottle locker after.
    • Glazed aluminium locking door to aft cockpit.


    • Polished stainless steel tubular customs rail inboard.
    • Bow pulpit in polished stainless steel.
    • Aft bathing platform with door access to aft cockpit

    Exterior Lighting:
    • Blue pinpoint courtesy LED lighting to aft cockpit.

    Anchoring & Mooring:
    • Lewmar V3 24vDC electric windlass, single roller with lock
    • Anchor windlass control and Lewmar chain counter at helm
    • Aft-focussed camera system on antenna mast for mooring visibility – integrated to Raymarine displays at helm
    • 27kg polished stainless steel Ultra anchor with 60m of highly-polished 10mm stainless chain & 50m of 16mm nylon warp.
    • Stainless steel bow protection plate.
    • Salt water anchor wash
    • Warps and fenders (fender stowage for 8 in sub-deck fender racks to each side).
    • 2x polished stainless steel bollard sets to foredeck, with fairleads and protective strips.
    • Pair of midships deck cleats with protective strips.
    • Polished stainless steel bollard sets to aft quarters, with fairleads and protective strips.

    Covers, Cushions & Canvas:
    • Navy aft deck canvas awning and stainless steel frame and roll-up access from port and starboard side-decks and from aft bathing platform.
    • Blue aft cockpit cushions.

    Tender & Outboard:
    • Ribeye RIB tender
    • Yamaha 2.5hp 4-stroke outboard engine (storedin aft port cockpit locker).
    • Simpson snap davits to bathing platform with stand-off bars.


    General note on safety equipment: Any safety equipment such as liferafts, Epirbs, fire extinguishers and flares etc. are usually personal to the current owner(s) and if being left on-board as part of the sale of a used vessel may require routine servicing, replacement, or changing to meet a new owners specific needs.

    Navigation Lights:
    • Full Osculati/Hella navigation lighting.

    Life saving:
    • Plastimo Transocean4 4-person canister liferaft to bathing platform (service date unverified).
    • 2x solid ring lifebuoys
    • McMurdo 406Mhz EPIRB with float-free housing in aft cockpit
    • RescueMe EDF electronic distress flair
    • FastFind 250 PLB personal locator beacon
    • Ecomax radar reflector

    Fire Control:
    • Sea-Fire automatic ships fire suppression system – FD750M to engine room & FD400A to generator compartment at lazarette.
    • 3x manual powder extinguishers (service dates unverified).
    • Fire blanket.

    Viewing arrangements

    Lying – Lymington, UK

    Available to view strictly by appointment

    Office Hours Mon- Fri 0900 – 17.00
    Saturday by prior appointment

    For more information or to arrange a viewing please contact us.

    Please Note: Due to the varying locations of our yachts, your travel time and the distances that may be involved, we recommend that you only make arrangements to view if you are actively considering purchase.

    Lead Broker : Alex Grabau
    Tel: +44 (0)1590 673715
    Email: info@grabauinternational.com

    Grabau International offers the details of all vessels in good faith but cannot guarantee or warrant the accuracy of this information or warranty the condition of any vessel and the details do not constitute a part of any contract. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. All vessels are offered subject to prior sale, price change, or withdrawal without notice. Grabau International provides professional yacht conveyancing and legal transfer of title for all yachts as per the ABYA Code of Practice with all deposit payments and final balance payments processed through secure dedicated client accounts solely for that purpose. Our dedicated client accounts are written in trust at Natwest Bank and we are fully insured.

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