18.6 m motor yacht by Sirena · built 2019–2024 (boats seen)
Sirena
58 Flybridge used price guide
Middle half published from ten boats
median asking price of 5 boats listed since Sep 2026, in today's prices · asking, not sold
18.59 mbeam 5.36 mfull specification
Only 5 boats have been listed since Sep 2026, a median of £1,661,000€1,936,500$2,225,000 in today's prices. That is enough for a first reading but not a firm guide, so treat it as provisional.
The field
Each number is one boat: its asking price in thousands of pounds, at today's market level, set above the year it was built. Tap a number to see the boat behind it.
Your boat
Estimated from the boats above. No email, no broker call.
No likely range yet: we publish it from eight comparable boats.
5 comparable boats built 2019–2025 · hours not given · all markets · asking, not sold
Add your asking price to see where it sits among boats like yours.
By year built
Median from five boats; middle half from ten. Below that we print nothing rather than a guess. Linked years have their own page with that year's boats. The spread is drawn on the field's scale, in pounds.
| Year | Boats | Median | Middle half | Spread |
|---|---|---|---|---|
| 2024 | 2 | — | too few boats | |
| 2023 | 1 | — | too few boats | |
| 2022 | 1 | — | too few boats | |
| 2020–2021 | 0 | — | none listed | |
| 2019 | 1 | — | too few boats |
Too few boats to fit a depreciation rate yet. We fit one once 20 boats span six build years.
What moves the price
Each factor compares boats of the same age, so a newer boat's premium isn't counted twice. Five boats or more on each side, or we say so.
Too few boats to fit an age rate yet.
Too few boats to compare factors yet: we need five on each side of a split.
Asking prices, not sold. Factors can overlap, so treat these as a guide to what the market asks, not a formula.
Time to sell
listed so far: the median of 5 boats seen on two or more dates
have cut their asking price: 0 of 5 boats seen at least 14 days apart
median size of a cut · withheld: fewer than five cuts to measure
These are asking prices, and asking is not selling. Days listed so far is not time to sell: a boat still listed has not sold, and we do not yet record when a listing ends. We have not measured how far sale prices land below asking; the methodology says what we can and cannot measure.
Cost to keep
A year on a South Coast marina berth, insured at the Gauge Value, in pounds. An estimate from published rates, not a quote.
Fuel is not included: no cited source gives the engine hours a typical owner runs in a year.
Questions about the Sirena 58 Flybridge
How much is a used Sirena 58 Flybridge worth?
The median asking price is £1,661,000, from 5 boats listed since Sep 2026, in today's prices. For a specific boat, use Your boat above.
How long does a Sirena 58 Flybridge stay on the market?
We do not measure time to sell yet. Across 5 boats seen on two or more dates, the median time between first and last sighting is 34 days so far. 0% of 5 boats seen at least 14 days apart have cut their asking price.
How fast does a Sirena 58 Flybridge lose value?
Too few boats have been listed to fit a rate yet. We fit one once 20 boats span six build years.
Are these sold prices?
No. They are asking prices observed on public listings, restated at today's market level. We have not yet measured how far sale prices land below asking, so we do not publish a figure for it.
About the Sirena 58 Flybridge
The boats behind this page were built between 2019 and 2024 and have been listed since Sep 2026, most often in the US market. 0% of the boats seen at least 14 days apart have cut their asking price.
How we measure: we read public listings from brokers and marketplaces, count a boat once when it appears on several sites, store its asking price each time it changes, and restate older asking prices at today's market level. We never republish a listing, a photograph or a seller. Every figure is recomputed nightly and dated; below five boats we publish nothing. The 5 boats here were listed in the US. Full methodology
- Length overall
- 18.59 mfrom listings · 5 boats
- Beam
- 5.36 mfrom listings · 5 boats
- Built
- 2019–2024from listings · 5 boats
- Type
- Motor yachtour classification