The Eastbay 39 SX is an updated version of the popular Eastbay 38, the boat that launched the Eastbay series in 1994. She was available in two configurations: the SX features a fully enclosed salon while the HX model has a semi-enclosed helm deck with no aft bulkhead. (Nearly all Eastbay 39s were SX models.) The accommodations include a spacious salon/helm deck on the main level with a Stidd helm seat and corner L-settee. Further forward is a chart table with room for a companion Stidd chair or convertible bench seat. Outside views from any seat in the salon are excellent. Ventilation is abundant as well with a windshield center section that opens, sliding side windows and two overhead hatches. Down three steps is a U-shaped dinette to port, full service galley with Corian counters, and large head with a curved shower enclosure. Forward is a private stateroom with island queen bed. Note the cockpit lazarette and wide side decks. Access to the engine room is via a hatch in the cabin sole. Built on a Hunt-designed deep-V hull with moderate beam, Yanmar 480hp diesels cruise the Eastbay 39 at 24–26 knots (about 30 knots top).