One year of the Sea Ray SLX 400 OB run, 2017–2026
2019
Sea Ray SLX 400 OB value
A 2019 Sea Ray SLX 400 OB is worth about £317,500€371,000$425,000 in today's asking prices, most likely between £262,000€305,500$351,000 and £365,500€426,000$489,500. Based on 18 comparable boats built between 2017 and 2022, 5 of them in 2019.
Likely range £262,000€305,500$351,000 – £365,500€426,000$489,500
5 boats built 2019 · 18 built 2017–2022 · listed since Jul 2024, in today's prices · any hours · every market alike · asking, not sold
The 2019 boats
Every Sea Ray SLX 400 OB built in 2019 that we have observed since Apr 2025, cheapest first in today's prices. Derived facts only: no seller, no listing, month not day.
3 of 5 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.
Either side of 2019
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.
The next three years
This boat's estimate carried forward along the model's age curve, if the market holds where it is today. The range is today's spread of boats, carried forward.
The curve is fitted on boats up to 9 years old, so we stop there rather than extrapolate.
Keeping this boat one more year costs about £29,500 in value, before berth, insurance and maintenance.
Specification
What the listings say about the Sea Ray SLX 400 OB: each figure is the median, or the most common value, of the boats that state it, unless a source is cited.
- Length overall
- 12.19 mfrom listings: median of 28
- Beam
- 3.68 mfrom listings: median of 22
- Draft
- 1.14 mfrom listings: median of 10
- Engines
- Twinfrom listings: 8 of 14
- Engine power
- 1,100 hp eachfrom listings: median of 23
- Fuel
- Petrolfrom listings: 27 of 27
- Build years seen
- 2017–2026from listings: 28 boats
Questions about the 2019 Sea Ray SLX 400 OB
How much is a 2019 Sea Ray SLX 400 OB worth?
A 2019 Sea Ray SLX 400 OB is worth about £317,500 in today's asking prices, most likely between £262,000 and £365,500. Based on 18 comparable boats built between 2017 and 2022, 5 of them in 2019.
What do 2019 Sea Ray SLX 400 OBs ask?
The 5 boats built in 2019 that we observed asked a median of £291,000 in today's prices. Each boat is counted once, at its latest asking price; these are asking prices, not sale prices.
Is a 2019 Sea Ray SLX 400 OB cheaper than a 2020?
Yes, usually by about 10%: 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 £29,500, or 9.4%, if the market holds where it is. That rate is fitted on 28 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.