It is without a doubt from around 1974/75. The 1977/78 DT model looked like the photo I posted, but bright metallic orange was more typical. Not a touring bike by refined 1980's standards, but a decent bike. The Diamond Road was their top model back then (70's), followed by the Diamond Touring in their old catalogs. You can find a Bicycling magazine review of the Diamond Road online. Most of the Kabukis you see are entry-level, since more people buy the less expensive bikes. The Submariner with Stainless steel main tubes was really sharp back then, especially in the light metallic blue, but still upper entry to lower mid-level. Being comfortable with the frame sizing and ride is the main issue. Drop bars with SunTour bar-ends is the way to go!
BRIDGESTONE=TIRES
