GWNSTG BK Chambered solid body nylon guitar with Fishman System 01 preamp. Solid Sitka Spruce top, solid MarupÃ¡/Brazilian Bitterwood chambered body, gold plated machine heads and adjustable truss rod with adjustable neck (micro tilt). Nut width: 1 7/8Â (48mm), Scale 25 9/16Â (650mm), Body Depth (1 15/16Â (50mm). Black color with gloss top and satin body finishing. Giannini GENWXTA Strings. Supplied with Giannini Gig Bag.