One year of the Bertram 31 run, 1961–1987
1973 Bertram
31 value
A 1973 Bertram 31 is worth about £90,000€107,000$118,500 in today's asking prices, most likely between £49,000€56,000$63,000 and £128,500€148,000$166,000. Based on 27 comparable boats built between 1970 and 1976, 8 of them in 1973.
Likely range £49,000€56,000$63,000 – £128,500€148,000$166,000
8 boats built 1973 · 27 built 1970–1976 · listed since Nov 2020, in today's prices · any hours (typical 892 h) · every market alike · asking, not sold
The 1973 boats
Every Bertram 31 built in 1973 that we have observed since Nov 2020, cheapest first in today's prices. Derived facts only: no seller, no listing, month not day.
3 of 8 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 1973
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
What keeping this boat costs in value, once the model has an age curve.
We don't carry this boat forward: the Bertram 31 has no published depreciation curve. Its 55 boats across 23 build years scatter too widely around any age trend for us to publish one.
Specification
What the listings say about the Bertram 31: each figure is the median, or the most common value, of the boats that state it, unless a source is cited.
- Length overall
- 9.45 mfrom listings: median of 54
- Beam
- 3.40 mfrom listings: median of 52
- Draft
- 0.94 mfrom listings: median of 30
- Engines
- Twinfrom listings: 40 of 42
- Engine power
- 315 hp eachfrom listings: median of 40
- Fuel
- Dieselfrom listings: 39 of 49
- Build years seen
- 1961–1987from listings: 55 boats
Questions about the 1973 Bertram 31
How much is a 1973 Bertram 31 worth?
A 1973 Bertram 31 is worth about £90,000 in today's asking prices, most likely between £49,000 and £128,500. Based on 27 comparable boats built between 1970 and 1976, 8 of them in 1973.
What do 1973 Bertram 31s ask?
The 8 boats built in 1973 that we observed asked a median of £106,500 in today's prices. Each boat is counted once, at its latest asking price; these are asking prices, not sale prices.
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.