In Terminator (1984), the first movie in the Terminator series, Arnold Schwarzenegger wears Gargoyles ANSI Classics sunglasses. These are the same glasses that were worn by Clint Eastwood in the Dirty Harry film Sudden Impact.

These Gargoyles sunglasses are still available and are not even expensive, so if you want that 'Dirty Harry meets Terminator' look, get them!

Reference: Gargoyles ANSI Classics - Color: Black frame, Grey Silver Flash lenses (code 3347016F)