The Guild X-150 Savoy was described as follows:
The tone quality and design of this guitar will bring real satisfaction of ownership to the most critical player. The Savoy is a pleasure to play and a pleasure to hear . . . a truly outstanding single pick-up electric. Has Guild's fast-action neck of 3-piece Honduras mahogany with adjustable steel neck rod. Eight large pearloid position markers are inlaid in its fine rosewood fingerboard. Ivoroid-bound body, with select fine grain spruce top, is 17" wide by 21" long by 3 1/8" deep. Back and sides are of choice maple. Single Guild built-in "Frequency Tested" pick-up has separate tone and volume controls. Individual string adjustment screws allow perfect tonal balance. Equipped with nickel-plated non-slip pegs and accessories. Factory-fitted with Guild EA-610 Strings.
All three of these guitars were available in Sunburst and Blonde finishes at the same price: in June 1963, US prices for these guitars were as follows: Savoy X-150 Sunburst $290, Blonde $305; Capri CE-100 Sunburst $260, Blonde $275; Slim Jim T-100D Sunburst $215, Blonde $230.