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1989 Tiara Yachts 3100 Open

Newport Beach, California


Team Bayport Has just gone through this boat Stem to Stern

She is worth a look and your time

  • New Interior Carpet
  • New HandCraft Mattress
  • New Heads on both Engines
  • New Exhaust Manifolds & Risers both Engines
  • New Stbd Fuel Module/Cooler
  • New Oil & Transmission Coolers both Engines
  • New Water Heater
  • New Electric Toilet
  • New Bottom Paint (July '23)
  • New Underwater Lights. (3) Multi-Colored
  • New Gold & Black Waterline Stripes
  • New Black & Gold House Stripes
  • New Garmin Transducer installed
  • New Cockpit Seating like the New Tiaras
  • This is a Restoration, So She is Ready for your Voyage    

Basic Boat Info

Boat Name: Seas The Day
Make: Tiara Yachts
Model: 3100 Open
Year: 1989
Condition: Used
Category: Power
Designer: Tiara Yachts engineering team
Construction: Fiberglass
Boat Hull ID: SSUT1839D989
Has Hull ID: Yes
Range: 206 mi


Length: 31 ft
Length Overall: 33'10 ft
Beam: 12 ft
Max Draft: 3 ft
Cabin Headroom: 6 ft
Dry Weight: 12,300 lb
Deadrise: 18 °
Electrical Circuit: 110 V
Double Berths: 2
Cabins Count: 1

Engines / Speed

Engines: 2
Engine #1 Specs:
  • Make: Mercruiser
  • Model: 454 MPI
  • Drive Type: Direct
  • Fuel: Unleaded
  • Engine Power: 350hp
  • Type: Inboard
  • Propeller Type: 3 Blade, Bronze
  • Engine Hours: 750
  • Engine Location: Port
Engine #2 Specs:
  • Make: Mercruiser
  • Model: 454 MPI
  • Drive Type: Direct
  • Fuel: Unleaded
  • Engine Power: 350hp
  • Type: Inboard
  • Propeller Type: 3 Blade, Bronze
  • Engine Hours: 750
  • Engine Location: Starboard
Total Engine Power: 700hp
Cruising Speed: 20.86 kn
Maximum Speed: 32.15 kn


Fuel Tanks: 1
Fuel Tank Capacity: 246 gal
Water Tanks: 1
Water Tank Capacity: 38 gal
Holding Tank Count: 1
Holding Tank Capacity: 20 gal


Heads Count: 1
Drive Type: Direct
Trim Tabs: Yes
Boat Class: Cruisers, Convertible Boats, Sports Fishing Boats


J R Means
Thank you for your interest in this boat. Buying or selling, my 35+ years of experience in boating will help you enjoy your new boat to it's fullest. I am here to help you enjoy your new Lifestyle. Boating is my passion and this is the career I chose after graduating from Cal Poly University (SLO). I have worked for one company, Bayport Yachts for over 35 years and will continue to work with you long after your purchase.
Bayport Yachts


Bayport Yachts
206 Riverside Ave. Suite C
Newport Beach, California, US, 92663

Manufacturer Provided Description

The 3100 Open's standard exterior features include a Single Level cockpit floor, Swim step, The interior is expansive, with outstanding 6' headroom - making the open cabin arrangement a large, livable, and comfortable retreat for 4. Complete with fully-equipped galley, dinette/berth, private forward berth, and private head. Six opening ports, and three overhead hatches, provide excellent ventilation and light throughout.


The cabin on the Tiara 3100 Open has everything you need for a weekend getaway or an extended vacation. The Owner’s stateroom has a double berth and filler cushion. There are three storage compartments under the berth and two storage compartments above, as well as a hanging locker to the port side with a large storage area above it. The large U-shaped convertible dinette sits to starboard, directly across from the galley. The galley features recessed double burner cooktop, microwave oven, Refrigerator/freezer, and a deep stainless sink with pressure water system. There are also three utensil drawers, two dish lockers, and additional storage. The easy cleaning all fiberglass head features two vanity storage compartments, mirror, S.S. sink, and electric head.

Swim Platform

Swim Platform with built-in Ladder / Bait and Tackle Center /Teak and Holly Cabin Sole

Cockpit Description

The cockpit on the 3100 Open is spacious and versatile, whether you plan to fish, cruise, or both. Standard features include a navigation chart area. Standard seating is A helm seat with locker storage, and a back-to-back companion seat, also with storage.. She has a tackle center.

Engine Notes

Top speed of boat: 38 mph

Twin 454 MPI Mercruiser engines. Approx 750 hours since installation in 2016.

New Heads on both engines

New Risers on both engines

New Exhaust Manifolds both engines

New Transmission coolers

New Oil coolers

New Impellers

New Fuel pump Stbd engine


Running Gear Description

There is a Teleflex hydraulic steering system with 20" S.S. destroyer wheel. Tiara uses bronze axe head rudders and struts and Armco Aqua Met 19 S.S. prop shafts for true precise handling and smooth ride.

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.