>>1825849I'm this
>>1825469 Miyata guy.
Looks like a 1985 310 (top tube decal stylized as "THREE TEN").
A couple things ID it: the black, square headbadge sticker was short-lived, the color 'swipe' decals on the seat tube, and those 'top mount' dt shifters fell out of style after ~86.
Pretty good. The only negative is that dt shifter brazeon which only fits Shimano shifters from a narrow date range. I'd figure the ones in your pic are SL-A105 (they have a characteristic upward curve). Suntour top mount ones won't fit, they used a different size brazeon. You can still get dt shifter bands, either to mount the 'normal' dt shifters, or to route cables (if you have handlebar/brake lever shifters).