This stunning dreadnought pays tribute to one of today’s top guitarists with one of Martin’s most prestigious models, the D-45. Crafted with Guatemalan Rosewood back and sides and an Engelmann spruce top with aging toner and forward shifted Adirondack X braces, this tonal masterpiece was designed by John Mayer and created by the master craftspeople in the Martin Custom Shop. Boasting a full thickness neck with hexagon inlays, bone nut and saddle, and gold open gear tuners, the D-45 John Mayer also features an interior label personally signed by the 7 time Grammy Award winning artist. Limited to 45 instruments.