CASIO SF-3000 BK Calculator, Digital  Diary, 18 KB RAM. Vintage. For Parts or Repair. Looks like new and in an excellent appearance condition.This unit is an integrated business tool which features a telephone directory function, a memo function and a schedule function. These functions are included along with a large liquid crystal display in a design engineered for full portability. Functions:Telephone/memo/schedule data storage/recall, calendar display, marker, secret area, editing, capacity display, auto display.