1977 Mercator Boat Works Mercator Offshore Boat in Seattle, WA 98109 US
Built in 1977
Mercator Offshore
1 Engine (Yanmar)
30 feet
Diesel
Fiberglass/Reinforced
ONE-EYED CAT is a Mercator Offshore 30 designed by Neil Parmentier/Sieg Brunnenkant and built from 1968 until 1981 in Kent, Washington. The boats were molded by Neil Parmentier and sold as bare hulls, and around 1970, Neil Parmentier, collaborating with Sieg Brunnenkant, redesigned the hull, created a new deck mold, and officially founded Mercator Industries. In 1973, Parmentier sold his interest to Brunnenkant, who continued to build the Mercator 30 until 1981. ONE-EYED CAT is a stout pocket cruiser and a great platform to explore the Pacific Northwest, and if bigger dreams are on the dance card, a sistership has completed a circumnavigation. Per renowned naval architect Robert Perry, "the Mercator 30's hull construction exceeds Lloyd's recommended scantlings, with all bulkheads and longitudinal members screwed to fiberglass flanges and then glassed over, a thoughtful structural detail throughout." With her additional cabin heat, ONE-EYED CAT has been a robust 4-season platform for exploring the Salish Sea.
From the owners:
"We specifically chose the Mercator 30 because we wanted a tough, honest boat built for the realities of Pacific Northwest cruising. With its relatively heavy displacement, an encapsulated keel, and a skeg-hung rudder, she is built to handle the steep chops of the Sound and the Strait of Juan de Fuca with absolute composure. She is a rugged, confidence-inspiring cruiser that has given us total peace of mind in all conditions. Our upgrades have focused strictly on enhancing that inherent seaworthiness, safety, and true 4-season cruising comfort. Equipped with an efficient Wallas forced-air diesel heating system, this boat is a proven winter explorer. We regularly cruised for weeks over Christmas and New Year's in absolute comfort. In fact, we got out more during the fall, winter, and spring because it allowed us to have the San Juans mostly to ourselves. To support our year-round cruising capabilities, the boat was completely repowered in 2019 with a modern, 29 HP Yanmar 3YM30 marine diesel engine. She also features a comprehensive electronics overhaul, including an integrated Raymarine Axiom 7 navigation suite with a 24-mile radar to safely and confidently cope with the frequent fog."
Recent Upgrades & Highlights
- Yanmar 3YM30 AE (2019)
- Raymarine ST1000 tiller pilot
- Raymarine Quantum radar dome
- Raymarine Axiom 7 touch screen MFD
- Recent Precision Sails main and genoa (135%)
- Harken MkIV roller furler
- Wallas 30 GB diesel cabin heater
Interior Accommodations
ONE-EYED CAT's interior layout is well-suited to a small, passage-making cruiser. A V-berth sits forward, with the head to port just forward of the mast. The main salon features a U-shaped settee to port that converts to a double berth, and a single settee to starboard. With the addition of lee cloths, all salon seating can be configured for comfortable off watch rest underway. Aft of the main salon and immediately adjacent to the offset companionway, an L-shaped galley to port offers a large icebox, single sink, and 4-burner propane stove with oven. To starboard, a compact navigation station keeps the MFD and VHF within easy reach of the cockpit. An aft starboard quarter berth completes the layout. Whether at anchor or underway, her accommodations are well up to the task of keeping her crew safe, rested, and well fed.
Interior Highlights
- Wallace 30 GB diesel heater with dedicated 2-gallon fuel tank
- Force 10 Cozy propane cabin heater
Galley
- 4 burner propane stove w/oven
- 2.5-gallon propane fuel tank
- Single center line sink w/ hot and cold pressure water
- Large, insulated ice box
- Hot water heater
- Hot and cold pressure water
Head
- Jabsco manual head
- 15 gallon blackwater holding tank w/ Y-valve.
- Sink with pressure water
Electronics & Navigation
Cockpit / Helm Station
- Ritchie bulkhead mounted 3¾" compass
Navigation Station
- Raymarine ST1000 Tiller Pilot
- Raymarine Quantum radar dome
- Raymarine Axiom 7 touch screen MFD
- Raymarine C.P 370 digital sonar
- Standard Horizon Explorer VHF
- Standard Horizon HX 290 floating handheld VHF
- Garmin GPS Map 441s
- Weems and Plath 3.5" Barometer
- Weems and Plath 3.5" Clock
Entertainment
- 21" Supersonic flatscreen TV monitor
- JVC KD-R320 Stereo Receiver/CD player/AM-FM radio
- Sony DVP-SR5104 CD/DVD player
- Jensen stereo speaker (main salon)
Mechanical Systems
- Engine: Yanmar 3YM30 AE (2019)
- Transmission - Kanzaki KM2P - direct drive
- PPS Dripless shaft
- 3 Blade fixed bronze propeller
- Yanmar engine Instruments and Morse controls
- SPXFLOW 12v automatic bilge pump (verify model / capacity)
- Wallace 30 GB diesel heater with dedicated 2 gal fuel tank
- Force 10 Cozy Propane cabin heater
- Caframo electric fan
- Water heater 6 gallons
- Fuel tank 36 gallons
- Water tank 30 gallons
- Holding tank: 15 gallons
Electrical Systems
- 12v DC and 120v AC electrical systems
- (2) Full River CD224-6 (6-volt 224Ah) deep cycle batteries - 12V at 224 Ah available
- (1) West Marine 12v 105 Ah AGM start battery
- Pro-Matic 30-3 battery charger
Deck & Hardware
ONE-EYED CAT is a robustly constructed boat with all bulkheads and longitudinal members screwed to fiberglass flanges and then glassed over. Her hull layup is 7 layers of hand-laminated woven roving and mat, with a minimum hull thickness of 5/16".
- 15kg Rocna anchor with approx 80 ft. of ¼ in. chain & 200 ft. line rode on bow roller.
- Tiller steering
- Harken Mark IV jib furler
- (2) Lewmar40ST primary winches
- (1) Mast mounted Anderson #10 halyard winch
- (1) Belway #21 cabin top winch
- Port and Starboard opening gates
Sails & Rigging
- Deck stepped single spreader aluminum mast and boom
- New wire standing rigging w/swaged fittings & bronze turnbuckles (2019)
- New wire lifelines (2020)
- Mainsail: Dacron with standard battens, two reef points by Precision Sails (new condition) 2019
- #1 Genoa (135%): Dacron by Precision Sails 2019 (new condition)
- Barton mainsheet traveler aft of tiller
- Mainsail Lazy Jack lines and stack pack
- (1) jib halyard
- (1) main halyard
- (1) boom topping lift
- End boom 4:1 main sheet system
- Barton mainsheet traveler
- Windex windvane
Safety & Miscellaneous
- Lifesling 2 man overboard system
- Fenders and dock lines
- Outboard storage bracket on pushpit
- West Marine space heater
- Cockpit manual bilge pump
- 3 fire extinnguishers
- Smoke and CO detector
- Boat hook
Exclusions
Owner's personal items
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
| Date | Event | Price |
|---|---|---|
| 9/15/26 | Initial price | $19,500 |
1977 Mercator Boat Works Mercator Offshore Video Tours
Overview from around the web 1977 Mercator Boat Works Mercator Offshore
The 1977 Mercator Boat Works Mercator Offshore has garnered a reputation among boating enthusiasts for its robust design and reliable performance
Customers appreciate its seaworthiness, describing it as a solid vessel well-suited for offshore adventures. The boat's classic lines and sturdy construction evoke a sense of nostalgia while also appealing to those seeking a dependable cruising option. Owners often highlight the spacious cockpit and comfortable interior, which make it ideal for extended trips. Many have praised its efficient layout, noting the practical use of space that allows for easy living aboard. The cockpit's accessibility and the boat's stability in rough waters contribute to a positive cruising experience. Additionally, feedback often points to the boat’s ease of handling, especially for those new to sailing. The performance under sail is frequently commended, with many owners expressing satisfaction with its responsiveness and speed. Maintenance is another common topic; while older boats require diligence, the Mercator Offshore’s reputation for durability means that many owners find their vessels remain in great condition with proper care. Overall, customers celebrate the Mercator Offshore 1977 as a trustworthy companion for both seasoned sailors and newcomers alike.
The Biggest Pros and Cons
1977 Mercator Boat Works Mercator Offshore: Pros and Cons
Pros
Rugged Construction: The Mercator Offshore is known for its solid fiberglass hull, designed to withstand challenging sea conditions. This makes it an excellent choice for offshore cruising.
Stable Design: With a well-balanced keel and sturdy rigging, the Mercator Offshore provides stability in rough waters, ensuring a smooth sailing experience.
Sailing Performance: The boat is appreciated for its excellent performance under sail, with good speed and responsiveness that appeals to both seasoned sailors and novices.
Compact Size: At approximately 28 feet in length, the Mercator Offshore is easy to handle and maneuver, making it suitable for single-handed sailing or small crew outings.
Simple Maintenance: The design of the boat allows for relatively easy maintenance and repairs, thanks to its straightforward systems and accessible components.
Classic Aesthetic: With its timeless design, the Mercator Offshore offers a classic aesthetic that appeals to traditionalists who appreciate the heritage and style of older boats.
Cons
Limited Space: As a smaller vessel, the Mercator Offshore may feel cramped for longer voyages, especially in terms of sleeping quarters and storage.
Minimal Modern Amenities: Being a vintage model, the boat may lack some of the modern conveniences and high-tech features found in newer models, which could deter some potential buyers.
Older Systems: The age of the boat means that some electrical and mechanical systems may require updating or replacement, potentially adding to initial investment costs.
Less Resale Value: While classic boats can appreciate over time, the resale value of older models can fluctuate and may not be as strong as newer designs.
Outdated Safety Gear: Depending on its condition and past maintenance, the safety equipment and features may need to be upgraded to meet current regulations and standards.
Made For
The 1977 Mercator Boat Works Mercator Offshore is designed for sailing enthusiasts who appreciate classic lines, sturdy construction, and reliable performance on open waters. This vessel is ideal for experienced sailors seeking a dependable offshore cruiser capable of tackling long voyages with confidence. The Mercator Offshore appeals to those who value craftsmanship and timeless design, making it a great choice for individuals or families wanting to explore coastal routes or embark on adventurous passages. Equipped with ample storage and living space, it provides a comfortable and secure environment for both weekend getaways and extended sailing trips. Whether you are a seasoned mariner or a passionate newcomer, the Mercator Offshore offers the quality and durability needed for memorable sailing experiences. Its versatile nature makes it suitable for everything from casual day sails to serious bluewater cruising, ensuring that it meets diverse sailing aspirations.
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 1977 Mercator Boat Works Mercator Offshore | ||||||
|---|---|---|---|---|---|---|
| Price | $19,500 | $22,000 | $15,346 | $12,500 | $38,500 | $44,500 |
| Location | Seattle | Everett | Point Roberts | Seattle | Seattle | Coupeville |
| Nominal Length | 30' | 33' | 33' | 26' | 34' | 40' |
| Beam | 9' | - | - | - | - | - |
| Draft | 5' | - | - | - | - | - |
| Engine Make | Yanmar | Yanmar | Yanmar | Yamaha | Yanmar | Westerbeke Diesel |
| Total Engine Power | 29 hp | 20 hp | 18 hp | 10 hp | 27 hp | 44 hp |
| Days on Market | 98 | 193 | 182 | 83 | 249 | 12 |
| Get in touch |
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Boat Location
Contact Swiftsure Yachts about 1977 Mercator Boat Works Mercator Offshore
2540 Westlake Ave N., Suite A, Seattle, WA, 98109
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