Tthat's a special bike in very good condition. Many people think Serotta had the most evolved front end geometry, with responsive handling yet "glued to the road" feeling at high speed.
I have a similar bike, also original paint, and have ridden it many happy miles. I'm thinking yours is a late 70s / early 80 build. This model was the "club sport" or if custom measurements, Club Special. It'll be Columbus tubing. Agree, probably set up for bar ends.
Mark Petry
Bainbridge Island, WA USA