Watson 34.5 (Colvic) Information, Review, Specs

The Colvic Watson 34.5 began production in 1974. It was designed by G. L. Watson & Co. Ltd., and its design philosophy is rooted in the heritage of the Watson-class lifeboats, which were renowned for their exceptional stability and heavy-duty construction. Colvic Craft, founded in 1964, was an early adopter of Glass Reinforced Plastic (GRP) construction, known for its robust fiberglass work. Their manufacturing ethos during this era focused on practicality, durability, and seaworthiness, which perfectly aligned with the Watson lifeboat hull design.

The 34.5 was the largest in the "Watson" motor sailor range, and like its smaller siblings, it was offered in various configurations, including a commercial fishing vessel, and at different stages of construction to accommodate various power options, including twin screws. This flexibility allowed owners to customize the vessel to their specific needs. While there isn't extensive documentation of specific MkI or MkII variations, the nature of Colvic's business often involved supplying hulls for completion by other builders or owner-finishers, which naturally led to a variety of internal layouts and specifications.

Sailing Performance and Handling

The Colvic Watson 34.5 is designed as a motor sailor, emphasizing stability and comfort under power, with the added benefit of sail assistance. With a sail area to displacement ratio (SA/D) of approximately 13.51, the boat is considered under-canvassed by performance sailing standards. This suggests that while it can sail, it is unlikely to be a swift performer, especially in light winds. Its relatively low SA/D ratio means it will likely require a good breeze to achieve respectable speeds under sail alone.

However, the vessel truly shines in terms of stability and seaworthiness, largely due to its substantial ballast and heavy displacement. The ballast to displacement ratio (Bal/Disp) of 41.67% is indicative of a very stiff and stable boat, capable of standing up to significant wind and maintaining a comfortable motion in a seaway. This, combined with its long keel hull type, contributes to a very comfortable and reassuring ride, particularly in rough conditions.

The displacement to length ratio (D/L) is approximately 368.6, placing it firmly in the category of a heavy, traditional cruiser. This heavy displacement, while contributing to a robust feel and stability, means the boat will not be agile or quick, but rather steady and purposeful. Its long keel provides excellent directional stability, making it easy to track a course, though it will be less maneuverable in tight quarters compared to boats with fin keels and spade rudders. Owners generally report that Colvic Watsons handle well under power, with good control in harbors, though their long keel requires a bit more planning for tight turns. While not a performance sailboat, it is capable of sailing effectively, with some owners noting reasonable performance when sailing upwind, though often requiring angles of 50 degrees or more.

Accommodations and Layout

The interior of the Colvic Watson 34.5 is renowned for its generous volume and practical layout, designed for comfortable cruising and often for liveaboard use. While specific headroom figures are not consistently available, the design of the Colvic Watson series generally provides ample interior space. Typical layouts often feature a V-berth forward, followed by a head compartment. The main salon usually includes a dinette that can convert into an additional berth, and a linear or L-shaped galley with a stove, sink, and storage. Many models also incorporate a dedicated navigation station. Quarter berths or additional cabins are often found aft, making it suitable for families or those requiring extra sleeping arrangements.

Colvic's use of fiberglass for the hull and deck provided a solid foundation, and interiors were often finished with a mix of wood trim and fiberglass liners. While not always described as luxurious, the finish quality is generally regarded as sturdy and functional. Storage is typically abundant throughout the boat, catering to the needs of long-distance cruising. Ventilation is usually provided by deck hatches and opening ports, which vary depending on the specific completion of the vessel. Many Colvic Watsons have undergone refits and upgrades by owners, personalizing the interior to modern standards while retaining the boat's inherent robustness.

Owner's Perspectives

Owners of the Colvic Watson 34.5 consistently praise its solid construction and seaworthiness, often highlighting its ability to handle challenging conditions with confidence. The boat's robust build, a hallmark of Colvic Craft, is frequently cited as a major strength, providing a sense of security on the water. Many owners appreciate the generous interior volume, which offers comfortable living spaces for extended cruising or liveaboard situations. The practicality of the motor sailor design, offering reliable propulsion alongside sail assist, is also a commonly cited advantage.

However, common weaknesses or maintenance issues often relate to the age of the vessels. Original equipment, such as deck fittings, plumbing, and electrical systems, may require upgrading or replacement. Owners often engage in restoration projects to modernize their boats, addressing issues like deck core integrity, which can be a concern on older fiberglass boats. The sailing performance, while adequate for cruising, is generally not a strong point, with some owners noting its limitations in lighter winds or when attempting to sail close to the wind. Despite these points, the strong community of Colvic Watson owners reflects the enduring appeal and satisfaction derived from these rugged and dependable cruisers.