The Japanese website, through Google Translate, says both are metallic:
Special finish of the "Model 4003" is true!
coloring that followed the Model 4003, characterize the looks, adopted by the limited color two color vivid novel was not to Rickenbacker ever basic spec.
Was the image of a blue that clarity of Santa Ana a rural resident of Rickenbacker's "Santa Ana Skyglo". In addition, reminiscent of plums shining bright sunshine of California "Metallic Plumglo", a color that has a depth and a sense of quality that includes a fine both metallic, while novel, claiming the presence like Rickenbacker. Both models full of personality, color Rickenbacker was blown up in great deal of effort is finished in model different from the regular color.
