Based on the serial number, the OP's bicycle was made September 1984. That's late enough in the year that it could possibly a 1985 model.

However, I specs for a 1985 Fuji Allegro which is quite similar, with the same derailleurs, crankset, brakes and wheelset. It even uses Valite 414! It would appear that the Sagres may have replaced the Berkley, so maybe yours is a late 1984 model. Regardless, it is close enough that their prices and placement should be similar. The 1985 Sagres cost $229 US and would have been considered an entry level, sports/touring model.

The 1985 Sagres used hi-tensile forks but Valite stays. It's only speculation, but maybe the difference between the berkley and Sagres was an upgrade to Valite stays?