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Hull Gauge
Recomputed 4 Nov 2026, 03:30 UTC

Builder · UK

Sealine prices and resale values

A used Sealine asks a median of £122,500 across 401 boats observed. The range loses value more slowly than comparable boats from other builders.

Median asking price of 401 boats listed since Aug 2020, in today's prices · Firm · asking, not sold

Loses a year, across the range
3.6%
of asking price for each year of age · 2.3 points better than other builders (same mix of types: 5.9%) · from 381 boats in 43 models
Published models
43 + 46 awaiting data
Boats observed
401
01

The range

Every model by the build years of the boats we have seen, grouped by range. The figure is the median asking price. Dashed models have too few boats to publish yet.

F Motor boats · 13 models

S Motor boats · 16 models

C Motor boats · 8 models

SC Motor boats · 6 models

Statesman Motor boats · 11 models

  • Sealine 305 Statesman£19,000
  • Sealine 310 Statesman, 3 boats observed, built 1990–1991, not yet published
  • Sealine 290 Statesman, 2 boats observed, built 1991, not yet published
  • Sealine 320 Statesman£42,000
  • Sealine 350 Statesman, 3 boats observed, built 1992, not yet published
  • Sealine 450 Statesman, 4 boats observed, built 1992–2015, not yet published
  • Sealine 390 Statesman, 3 boats observed, built 1993–1994, not yet published
  • Sealine 420 Statesman, 1 boat observed, built 1993, not yet published
  • Sealine 330 Statesman£63,000
  • Sealine 410 Statesman£111,000
  • Sealine 360 Statesman£68,500

T Motor boats · 6 models

Ambassador Motor boats · 5 models

  • Sealine 285 Ambassador, 4 boats observed, built 1987–1989, not yet published
  • Sealine 290 Ambassador£29,500
  • Sealine 380 Ambassador, 2 boats observed, built 1992, not yet published
  • Sealine 310 Ambassador, 3 boats observed, built 1994–1996, not yet published
  • Sealine 360 Ambassador£55,000

Senator Motor boats · 4 models

  • Sealine 255 Senator, 3 boats observed, built 1988–1991, not yet published
  • Sealine 230 Senator, 2 boats observed, built 1992–1993, not yet published
  • Sealine 240 Senator, 3 boats observed, built 1994–1997, not yet published
  • Sealine 210 Senator, 1 boat observed, built 1996, not yet published

Envoy Motor boats · 2 models

  • Sealine 215 Envoy, 3 boats observed, built 1980–2011, not yet published
  • Sealine 218 Envoy, 3 boats observed, built 1989–1990, not yet published

Other models Motor boats · 18 models

  • Sealine 305 Flybridge, 1 boat observed, built 1985, not yet published
  • Sealine 285, 1 boat observed, built 1987, not yet published
  • Sealine 365 Sports Cruiser, 1 boat observed, built 1988, not yet published
  • Sealine 255, 4 boats observed, built 1989–1992, not yet published
  • Sealine 328£35,000
  • Sealine 365 Sportbridge, 3 boats observed, built 1989–1991, not yet published
  • Sealine 260, 2 boats observed, built 1991–1993, not yet published
  • Sealine 390, 2 boats observed, built 1992–1993, not yet published
  • Sealine 270, 1 boat observed, built 1993, not yet published
  • Sealine 330, 3 boats observed, built 1993–2017, not yet published
  • Sealine 210, 2 boats observed, built 1994–1996, not yet published
  • Sealine 310, 1 boat observed, built 1994, not yet published
  • Sealine 360, 1 boat observed, built 1995, not yet published
  • Sealine 42/5, 1 boat observed, built 2003, not yet published
  • S450£292,000
  • C48, 2 boats observed, built 2012–2013, not yet published
  • F380, 4 boats observed, built 2015–2018, not yet published
  • S335v, 2 boats observed, built 2024–2025, not yet published

Bars: build years of the boats we have seen (the middle 90%), not production runspublished · median asking pricefewer than five boats, not publishedno recorded end (or start) year: the bar stops at the newest (or oldest) boat seen
02

Which hold value best

Share of asking price lost for each year of age. Shorter is better. The tick marks the same type of boat from other builders. Models need 20 boats across six build years, and a consistent fit, to be ranked.

No Sealine model has 20 boats across six build years yet, so none can be ranked. 18 models have 10 or more boats.

03

Against other builders

The five builders whose boats most overlap with Sealine's by type and length, on the same basis.

BuilderModelsBoatsMedian askingLoses a year
Sealine43401£122,500 Firm3.6%
Intrepid30301£208,500 Firm4.4%
Cabo13193£199,500 Firm4.4%
Cruisers51501£170,000 Firm4.7%
Carver56630£78,500 Firm4.9%
Silverton31342£69,500 Firm5.7%
04

Every model

Sort by any column. Medians are asking prices, not sold prices. Models with fewer than five boats are listed with their count but no figure yet. Built is the span of build years among the boats we have seen.

Every Sealine model we have observed
S34Power10.5 m1998–201621£75,000 Indicative—
F34Power10.8 m2003–200919£98,000 Indicative—
SC35Power11.1 m2008–202319£136,500 Indicative—
F42/5Power12.9 m2002–201018£177,000 Indicative—
F33Power10.5 m1994–200216£70,500 Indicative—
F37Power11.7 m2000–200916£113,000 Indicative—
F43Power13.4 m1997–200615£118,000 Indicative—
S28Power8.8 m1996–200412£51,000 Indicative—
S330Power10.3 m2015–202012£166,500 Indicative—
C330Power10.3 m2015–201911£204,500 Indicative—
C335Power10.3 m2021–202611£279,000 Indicative—
C430Power13.1 m2018–202811£449,000 Indicative—
T60Power18.7 m2005–201111£395,500 Indicative—
C390Power12.0 m2019–202510£448,500 Indicative—
F42Power12.8 m2011–201210£263,500 Indicative—
F46Power14.7 m1979–201210£269,500 Indicative—
S24Power7.5 m1994–200110£22,500 Indicative—
S37Power11.3 m1996–200210£70,500 Indicative—
C335vPower10.3 m2022–20259£305,000 Indicative—
F430Power13.5 m2018–20249£555,000 Indicative—
S23Power7.5 m2002–20048£31,500 Indicative—
S38Power11.4 m2003–20078£99,000 Indicative—
SC29Power9.3 m2006–20098£71,000 Indicative—
SC42Power12.8 m2011–20138£244,500 Indicative—
S41Power12.9 m1999–20027£110,000 Provisional—
S42Power12.9 m2004–20077£140,000 Provisional—
Sealine 330 StatesmanPower10.4 m1994–19987£63,000 Provisional—
F44Power13.4 m1998–20006£108,000 Provisional—
S450Power13.9 m2012–20166£292,000 Provisional—
SC38Power11.3 m2008–20116£136,000 Provisional—
Sealine 305 StatesmanPower9.3 m1984–19926£19,000 Provisional—
Sealine 328Power10.3 m1989–19926£35,000 Provisional—
Sealine 360 AmbassadorPower11.3 m1994–19966£55,000 Provisional—
Sealine 410 StatesmanPower12.7 m1994–20206£111,000 Provisional—
T50Power15.4 m2006–20136£269,000 Provisional—
S25Power7.6 m2005–20075£36,500 Provisional—
S48Power14.8 m2001–20055£139,500 Provisional—
S390Power12.0 m2022–20255£400,500 Provisional—
Sealine 290 AmbassadorPower9.6 m1991–19925£29,500 Provisional—
Sealine 320 StatesmanPower9.6 m1992–19965£42,000 Provisional—
Sealine 360 StatesmanPower11.0 m1995–19985£68,500 Provisional—
T46Power14.1 m1999–20025£145,000 Provisional—
T51Power15.7 m1998–20035£209,500 Provisional—
C530Power16.1 m2017–20244awaiting data—
F380Power11.4 m2015–20184awaiting data—
F530Power16.1 m2017–20244awaiting data—
SC39Power11.3 m2005–20064awaiting data—
SC47Power14.3 m2010–20124awaiting data—
Sealine 255Power8.1 m1989–19924awaiting data—
Sealine 285 AmbassadorPower8.4 m1987–19894awaiting data—
Sealine 450 StatesmanPower13.9 m1992–20154awaiting data—
C39Power11.9 m2004–20053awaiting data—
S29Power9.1 m2005–20063awaiting data—
S43Power13.1 m2002–20033awaiting data—
S335Power10.3 m2021–20253awaiting data—
Sealine 215 EnvoyPower6.6 m1980–20113awaiting data—
Sealine 218 EnvoyPower7.0 m1989–19903awaiting data—
Sealine 240 SenatorPower7.5 m1994–19973awaiting data—
Sealine 255 SenatorPower7.6 m1988–19913awaiting data—
Sealine 310 AmbassadorPower9.6 m1994–19963awaiting data—
Sealine 310 StatesmanPower10.3 m1990–19913awaiting data—
Sealine 330Power10.4 m1993–20173awaiting data—
Sealine 350 StatesmanPower10.9 m19923awaiting data—
Sealine 365 SportbridgePower11.5 m1989–19913awaiting data—
Sealine 390 StatesmanPower12.8 m1993–19943awaiting data—
T47Power14.3 m2000–20033awaiting data—
C48Power15.5 m2012–20132awaiting data—
C390vPower12.4 m20242awaiting data—
F48Power—20132awaiting data—
F450Power13.6 m2011–20152awaiting data—
S330vPower10.0 m2019–20202awaiting data—
S335vPower10.2 m2024–20252awaiting data—
Sealine 210Power6.4 m1994–19962awaiting data—
Sealine 230 SenatorPower7.3 m1992–19932awaiting data—
Sealine 260Power8.6 m1991–19932awaiting data—
Sealine 290 StatesmanPower9.6 m19912awaiting data—
Sealine 380 AmbassadorPower12.2 m19922awaiting data—
Sealine 390Power12.5 m1992–19932awaiting data—
T52Power15.4 m2005–20062awaiting data—
F36Power11.3 m19981awaiting data—
Sealine 42/5Power13.4 m20031awaiting data—
Sealine 210 SenatorPower6.4 m19961awaiting data—
Sealine 270Power8.5 m19931awaiting data—
Sealine 285Power8.8 m19871awaiting data—
Sealine 305 FlybridgePower9.7 m19851awaiting data—
Sealine 310Power9.6 m19941awaiting data—
Sealine 360Power11.3 m19951awaiting data—
Sealine 365 Sports CruiserPower—19881awaiting data—
Sealine 420 StatesmanPower13.1 m19931awaiting data—
05

Questions about Sealine prices

How much does a used Sealine cost?

A used Sealine asks a median of £122,500 across 401 boats listed since Aug 2020, in today's prices. The middle half ask between £71,000 and £227,000. These are asking prices, not sold prices.

Does a Sealine hold its value?

Across the range, a used Sealine loses about 3.6% of its asking price for each year of age, against 5.9% for the same types of boat from other builders.

Why is a Sealine model missing a price?

We publish a model once five boats have been listed. 46 models are listed above with their count so far, including the Sealine 255, the Sealine 285 Ambassador and the Sealine 450 Statesman, and will get a published figure when they reach five.