Seawind 1370 Information, Review, Specs

Sailing Performance & Handling

The Seawind 1370 is built with a clear performance mandate, utilizing a vinylester infusion process over a PVC foam core with strategic carbon fiber and Kevlar reinforcement. This results in a lightship displacement of approximately 27,100 lbs—a lean figure for a 45-foot catamaran that translates into a highly responsive sailing experience. According to technical assessments by Cruising World, the 1370 achieves a superior sail area-to-displacement ratio (SA/D) of approximately 22.1, allowing it to "sail like a witch" even in light airs that would leave many production cats motoring.

Handling is defined by the signature twin-helm stations situated at the aft bulkheads. Unlike flybridge designs that isolate the helm from the deck, the 1370’s helms offer 360-degree visibility while keeping the skipper protected under the coachroof. The boat utilizes fixed mini-keels rather than daggerboards, a choice made to minimize maintenance and maximize safety during groundings. Despite the lack of boards, the hull’s fine entry and reverse bows allow it to point surprisingly well; editorial tests have recorded the boat holding 6.4 knots at a 38-degree apparent wind angle in flat water. The standard self-tacking jib and all lines led aft to the helm stations make it a premier choice for shorthanded crews.

Interior Comfort & Variations

The 1370 introduces the "galley-up" layout to Seawind’s mid-range, a feature borrowed from the Seawind 1600 that replaces the traditional galley-down arrangement found on the 1160 and 1260. This open-plan design integrates the salon, galley, and cockpit on a single level, facilitated by Seawind’s iconic trifold door system that stows against the ceiling to eliminate the barrier between indoor and outdoor spaces. The interior is characterized by substantial headroom of 6'10" (2.1m) and the use of toughened panoramic glass that provides exceptional natural light.

The boat is primarily offered in two configurations:

• Owner’s Version (3-Cabin): The entire port hull is dedicated to the owner’s suite, featuring a forward-facing queen berth, a central vanity/desk area, and a large head with a separate shower stall aft.
• 4-Cabin Version: This layout divides both hulls into twin guest cabins, often utilized by charter operators or large families.

A notable innovation in the 1370 is the "breakfast bar" in the cockpit, which features integrated seating and provides a secondary social hub apart from the main salon table. Materials throughout the boat lean toward modern, durable finishes like Corian countertops and high-quality synthetic veneers designed to withstand tropical humidity.

Popular Mentions & Media

The Seawind 1370’s development was uniquely transparent, documented extensively by the YouTube channel S/V Ruby Rose. Owners Nick and Terysa worked alongside Seawind’s design team and naval architect François Perus to optimize the boat specifically for the "liveaboard couple" demographic. This collaboration led to specific features like the forward-facing navigation station with 360-degree views and a dedicated "workshop" area in the forepeak of some hulls. The "Ruby Rose" influence helped the 1370 build a massive digital following long before the physical launch, creating a unique community-led design cycle.

Known Issues & Buyer’s Checklist

While the Seawind 1370 is widely praised for its build quality, new owners and prospective buyers should focus on several specific areas during surveys or shakedown periods:

• Trifold Door Alignment: The signature trifold doors are a complex mechanical system. On early hulls, owners have reported that the doors can become "sticky" or catch on the tracks if the boat is not perfectly level or if the rollers are not regularly lubricated.
• Galley Storage Logistics: While the galley-up design is socially superior, it offers less total cabinetry than the older galley-down models. Buyers should inspect how previous owners have utilized the "pantry" storage in the hulls to ensure it meets their provisioning needs.
• CZone/Digital Switching: Many 1370s are equipped with CZone digital switching. While powerful, this adds a layer of electronic complexity; buyers should ensure the system has been updated with the latest firmware and that an analog bypass is clearly understood.
• Weight Sensitivity: Because the 1370 is a performance-oriented catamaran, its handling is more sensitive to "cruiser creep" (overloading) than heavier, slower cats. Check for excessive aftermarket additions like heavy dinghies or extra batteries that may sit the transoms too low in the water.

Community & Resources

The Seawind community is robust and highly technical. The Seawind Owners Association serves as a primary hub for technical knowledge sharing, specifically regarding the newer 1370 and 1170 models. Additionally, the manufacturer maintains an active Frequently Asked Questions portal which provides detailed documentation on the 1370’s systems, ranging from the Mastervolt lithium integration to the specific dimensions of the sail lockers.

The Verdict

Pros:

• Exceptional light-air performance and upwind tracking for a keel catamaran.
• Industry-leading 360-degree visibility from protected twin helm stations.
• Single-level living with the trifold door system creates a massive social footprint.
• High bridgedeck clearance (0.85m) significantly reduces slamming in heavy seas.

Cons:

• Limited galley storage compared to traditional galley-down layouts.
• Complex digital switching and mechanical doors require diligent maintenance.
• Relatively high price point in the 45-foot segment due to carbon/kevlar construction.