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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

One year of the Sea Ray 390 Express Cruiser run, 1984–2005

1988
Sea Ray 390 Express Cruiser value

A 1988 Sea Ray 390 Express Cruiser is worth about £29,000€34,000$36,500 in today's asking prices, most likely between £23,000€26,500$28,500 and £35,500€41,500$47,000. Based on 56 comparable boats built between 1985 and 1991, 13 of them in 1988.

Gauge Estimate · 1988
Firm · 56 comparable boats
£29,000€34,000$36,500

Likely range £23,000€26,500$28,500 – £35,500€41,500$47,000

13 boats built 1988 · 56 built 1985–1991 · listed since Aug 2020, in today's prices · any hours (typical 1,016 h) · every market alike · asking, not sold

in pounds

VAT is not measured for this model yet (0 of 56 boats state it paid, 0 not paid), so it does not move the estimate.

Enter the asking price from a listing to see where it sits against the 1988 boats and the likely range.

likely rangeestimateyour price, off the scale£, today's priceslog scale
01

The 1988 boats

Every Sea Ray 390 Express Cruiser built in 1988 that we have observed since Dec 2020, cheapest first in today's prices. Derived facts only: no seller, no listing, month not day.

asked $24,900 ≈ £20,000lying in the US · 525 h · seen May 2022, below the likely range
asked $27,250 ≈ £22,000listed in the US market · seen Jun 2023, below the likely range
asked $29,900 ≈ £24,000lying in the US · 2,150 h · seen Jan 2023, below the likely range
asked $35,000 ≈ £25,500 cut 19% · listed 4 monthslisted in the US market · seen Apr 2021, below the likely range
asked $32,999 ≈ £27,500lying in the US · 1,400 h · seen Feb 2023, inside the likely range
asked $34,500 ≈ £28,000lying in the US · 900 h · seen May 2022, inside the likely range
asked $34,900 ≈ £29,000 cut 13% · listed 3 weekslying in the US · seen Aug 2022, inside the likely range
asked $36,900 ≈ £31,000 cut 6.2% · listed 2 monthslying in the US · seen Jul 2022, inside the likely range
asked $39,750 ≈ £33,500 listed 6 weekslying in the US · 310 h · seen Jul 2022, inside the likely range
asked CAD 52,000 ≈ £33,500 cut 10% · listed 2 monthslying in Canada · 1,923 h · seen Oct 2022, inside the likely range
asked $48,000 ≈ £39,000lying in the US · 1,400 h · seen Feb 2023, inside the likely range
asked $50,000 ≈ £41,500lying in the US · 990 h · seen Nov 2022, inside the likely range
asked €89,000 ≈ £79,500 cut 0.6% · listed 21 monthslisted in the European market · 1,250 h · seen Sep 2022, above the likely range

8 of 13 sit inside the likely range (hollow diamonds). Each boat is placed at its ask in today's prices and labelled with the price as asked and the month we saw it; a cut shows its size, and how long we have seen the boat listed so far. How we measure.

02

Either side of 1988

The rest of the run on the same scale, in today's asking prices. The bar is each year's middle half (from ten boats), the tick its median (from five). Years with a page of their own are linked.

1984—1 boat · no page yet
1985£18,5006 boats
1986£30,50010 boats
1987£28,0005 boats
1988£25,00013 boats
1989£32,00010 boats
1990£35,0008 boats
1991–2005—5 boats · fewer than five a year
Today£29,000Gauge Estimate
2027£27,000−£2,000 on today
2028£25,000−£4,000 on today
2029£23,000−£6,000 on today

Keeping this boat one more year costs about £2,000 in value, before berth, insurance and maintenance.

04

Specification

What the listings say about the Sea Ray 390 Express Cruiser: each figure is the median, or the most common value, of the boats that state it, unless a source is cited.

Length overall
11.89 mfrom listings: median of 55
Beam
4.24 mfrom listings: median of 52
Draft
0.71 mfrom listings: median of 33
Engines
Twinfrom listings: 39 of 42
Engine power
340 hp eachfrom listings: median of 32
Fuel
Petrolfrom listings: 47 of 54
Build years seen
1984–2005from listings: 58 boats
05

Questions about the 1988 Sea Ray 390 Express Cruiser

How much is a 1988 Sea Ray 390 Express Cruiser worth?

A 1988 Sea Ray 390 Express Cruiser is worth about £29,000 in today's asking prices, most likely between £23,000 and £35,500. Based on 56 comparable boats built between 1985 and 1991, 13 of them in 1988.

What do 1988 Sea Ray 390 Express Cruisers ask?

The 13 boats built in 1988 that we observed asked a median of £25,000 in today's prices, the middle half between £23,000 and £29,000. Each boat is counted once, at its latest asking price; these are asking prices, not sale prices.

Is a 1988 Sea Ray 390 Express Cruiser cheaper than a 1989?

Yes, usually by about 8.4%: each newer build year of this model asks that much more, all else equal. The gap between individual boats is often larger, because hours, VAT status and where the boat lies move the price too.

How much will it lose next year?

About £2,000, or 7.8%, if the market holds where it is. That rate is fitted on 58 boats across the whole run, not a forecast of the market.

Are these sold prices?

No. Every figure here is built from asking prices seen on public listings. Boats usually sell for less than they ask; we do not yet measure by how much, so we never print a sold price as ours.

This model

Sea Ray 390 Express Cruiser price guideValue your boatWatch your 1988 boat’s estimateAll Sea Ray models

1988 rivals

1988 Sea Ray 340 Express Cruiser1988 Grand Banks 42 Classic1988 Grand Banks 36 Classic

Other generations

Sea Ray 400 Express Cruiser (1991–1999)Sea Ray 370 Express Cruiser (1992–2000)Sea Ray 410 Express Cruiser (1999–2003)