• Slide: The Image of 1978 Uniflite 50 boat "Amethyst" on water with people fishing, scenic background. - 2The Image of 1978 Uniflite 50 boat "Amethyst" on water with people fishing, scenic background. - 2
  • Slide: The Image of Group holding fish on 1978 Uniflite 50 boat "Amethyst" in Berkeley, CA marina. - 3The Image of Group holding fish on 1978 Uniflite 50 boat "Amethyst" in Berkeley, CA marina. - 3
  • Slide: The Image of Interior of a 1978 Uniflite 50 boat with blue seating and fire extinguishers. - 4The Image of Interior of a 1978 Uniflite 50 boat with blue seating and fire extinguishers. - 4
  • Slide: The Image of Interior of a 1978 Uniflite 50 boat with wooden paneling and blue seating. - 5The Image of Interior of a 1978 Uniflite 50 boat with wooden paneling and blue seating. - 5
  • Slide: The Image of 1978 Uniflite 50 boat interior with control panel and red captain's chair. - 6The Image of 1978 Uniflite 50 boat interior with control panel and red captain's chair. - 6
  • Slide: The Image of 1978 Uniflite 50 boat interior with blue seating and wooden accents. - 7The Image of 1978 Uniflite 50 boat interior with blue seating and wooden accents. - 7
  • Slide: The Image of Engine compartment of a 1978 Uniflite 50 boat, showcasing green machinery components. - 8The Image of Engine compartment of a 1978 Uniflite 50 boat, showcasing green machinery components. - 8
  • Slide: The Image of Engine room of a 1978 Uniflite 50 with batteries and wiring. - 9The Image of Engine room of a 1978 Uniflite 50 with batteries and wiring. - 9
  • Slide: The Image of Engine room of a 1978 Uniflite 50 boat, featuring mechanical components and piping. - 10The Image of Engine room of a 1978 Uniflite 50 boat, featuring mechanical components and piping. - 10
1/10

1978 Uniflite 50

$350,000

Used

Boat in Berkeley, CA 94704 US

builtBuilt in 1978
Year the boat was built
model

50

Boat model
engine

2 Engines (Volvo Penta, Volvo Penta)

Engine type and count
length

50 feet

Overall boat length
fuel

Diesel

Fuel type
material

Fiberglass/Reinforced

Hull material

AMETHYST is a Coast Guard Inspected Vessel.

The vessel is USCG certified as a 100-mile boat and licensed to carry up to 42 passengers. In 2020, Amethyst underwent a major mechanical retrofit, including the installation of new Volvo Penta D8 engines paired with ZF transmissions with trolling valves, significantly improving reliability, efficiency, and performance for charter operations.

Previously operating as Seabass, and before that as a commercial tuna vessel, the boat benefits from a robust commercial build. One of the lazarettes remains insulated and configured as a fish cooler, ideal for high-capacity fishing trips.

Performance & Condition

  • Comfortable cruising speed of 18 knots

  • Maximum speed of approximately 24 knots

  • Recent topside inspection completed

  • Vessel is in compliance, actively operating, and revenue-ready

Layout & Accommodations

  • Two marine heads (bathrooms)

  • Sleeping accommodations for up to 12

  • Four additional interior spaces suitable for storage, crew, or operational use

  • Main cabin to include a new seating layout designed to increase passenger capacity


Nominal Length
50ft
Length Overall
50ft
Beam
15ft
Max Draft
6.42ft
Cabin Headroom
7ft
Cruising Speed
18kn
Max Speed
24kn
Range
200nmi
Cabins
1
Heads
1
Max Passengers
40
Seating Capacity
25
Fresh Water Tanks
100gal
Fuel Tanks
250gal
Holding Tanks
50gal
Hull Material
fiberglass
Hull Shape
deep-vee
Engine 1
Engine Make
Volvo Penta
Engine Model
Volvo Penta D8
Total Power
450hp
Engine Hours
4000
Engine Type
inboard
Fuel Type
diesel
Engine Year
2020
Drive Type
direct
Propeller Type
4-blade
Propeller Material
bronze
Engine 2
Engine Make
Volvo Penta
Engine Model
Volvo Penta D8
Total Power
450hp
Engine Hours
4000
Engine Type
inboard
Fuel Type
diesel
Drive Type
direct
Propeller Type
4-blade
Propeller Material
bronze
Depthsounder
✓
Radar
✓
Log Speedometer
✓
Plotter
✓
Autopilot
✓
Compass
✓
Gps
✓
Vhf
✓
Ais
✓
Disclaimer

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Price History

DateEventPrice
2/17/26Initial price$350,000

Contact Rubicon Yachts- San Rafael

25 Third Street, San Rafael, CA, 94901

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Address

25 Third Street
San Rafael, CA 94901

Boat Location

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25 Third Street, San Rafael, CA, 94901

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