Insuring Bonum Marin: cover and premium
motor yachts · several countries
Bonum Marin builds motor yachts in several countries. NAMMERT insures a Bonum Marin regardless of year built or where you bought it, liability, hull, legal expenses and personal accident cover from one house, taken out online in five minutes.
At a glance
Origin
several countries
Class
motor yachts
Typical sizes
Premium from
from €49 a year for liability
Worth knowing
Bonum Marin; cover, cost and conditions
Two motor yacht model ranges are documented for Bonum Marin: the Bonum 25 from the years 1981 to 1990 and the Bonum 800 from 1994 to 2003. Both series are finished and behind us, so a change of insurer almost always concerns a vessel bought second hand.
If you switch to us, we cancel the previous contract free of charge. You give us the existing policy, we take care of the rest and coordinate the start date so that no gap arises. The new contract then rests on third-party liability with a limit of indemnity of 10 to 50 million euros.
An agreed value applies to the hull cover, indemnification is made with no deduction for depreciation (new for old), in the Premium tariff with no age limit. Collision, grounding, vandalism and theft of parts are included, and in limited hull cover also fire, storm, lightning strike and damage in winter storage.
Questions and answers
Frequent questions
How does the switch from an existing contract to NAMMERT work?
For Bonum Marin: We cancel the previous contract free of charge and coordinate the start of the
new contract accordingly.
In this way no gap in cover remains between the two policies.
Does a year of construction from the eighties bring restrictions with it?
No, not for Bonum Marin either: We insure regardless of year of construction,
place of purchase and previous owners.
In the Premium tariff the agreed value applies with no age limit and with no deduction for
depreciation (new for old).
The cover that fits
motor yacht insurance
Tariffs, cover and FAQ for motor yacht insurance in detail.
Third-party liability
The foundation for a boat from Bonum Marin: damage to third parties, worldwide,
from €49 a year for liability.
Hull cover
Partial or full hull cover for a Bonum Marin, at replacement value with an agreed fixed value.
For the whole class of boat
For Bonum Marin: What matters for motor yachts is the same across every brand; engine output,
how a claim is settled, cruising range and theft protection.
The class page lists every point and every brand in this class, Bonum Marin included.
Other builders in this class
Nautical information What counts before you cast off, papers, equipment, waters
Licence
A powerboat licence (inland or coastal) is required from 15 hp (11.03 kW).
Registration
Registration from 3 hp; for trips abroad carry the boat certificate or flag document.
Waters
Inland, coastal and abroad; plan fairways, bridge clearances, draught and tides.
Equipment
Lifesaving gear, fire extinguisher, anchor, signalling equipment and correct navigation lights.
Cruising range
The agreed cruising range is stated in the policy and can be extended at any time.
Weather
Check wind force in Beaufort and wind direction before casting off, and allow for gusts.
General guidance, not a complete account;
what governs are the rules of the waters you are on and the manual of your Bonum Marin.
Current wind force and direction for your waters are shown on the Home.
Series by Bonum Marin, build years and cover
Bonum 800 is a motor yacht from Bonum Marin, built from 1994 to 2003.
Also a motor yacht, built from 1981 to 1990.
For the Bonum 800 by Bonum Marin series the market value and the replacement cost often differ
widely.
An agreed value removes the age-based scale, and the figure in the policy stands.
For the Bonum 25 by Bonum Marin series there is no list price left.
That is why we work with an agreed value: you state the figure, we agree it,
and in a total loss exactly that amount is paid, with no deduction for wear.
For the Bonum 800, Bonum 25 by Bonum Marin series:
On motor yachts the drive and the electronics together make up about half the value.
Both belong in the valuation, otherwise the sum insured is too low.
What does a used Bonum Marin cost?
We hold today’s price ranges by year for 2 models by Bonum Marin.
The table shows what boats in average condition are worth,
from the oldest to the youngest year on record.
Choose your exact model, year and condition in the calculator.
| Model | Years built | Range today |
|---|---|---|
| Bonum 25 | 1984 to 1987 | €10,300 to €15,800 |
| Bonum 800 | 1997 to 2000 | €22,400 to €33,700 |
Estimate from our boat records, October 2026.
Not a survey.
Bonum Marin insured in five minutes.
Boat type, year built, length and value of your Bonum Marin are all we need.
Work out the premium online or call us: +49 3375 29 12 77.
