Worn by: Keanu Reeves as Jack Traven
Reference: Casio G-Shock
Brand: Casio
Long before Keanu Reeves became the Hollywood good guy who bought Rolex Submariners for his entire John Wick stunt team, the actor had one of his biggest early roles in Speed, the unlikely tale of a city bus rigged to explode if it drops under 50 MPH. Throughout the film, Reeves, who portrayed an LAPD SWAT officer, wears a G-Shock DW-5600C-1V, a nail-on-the-head pick for a police officer during the era. As unveiled in 1983, G-Shock presented an incredibly durable and inexpensive digital option that quickly found favor among law enforcement and the military. The descendant of the timepiece worn by Reeves in Speed, the DW5600-1V, is one of four G-Shocks to have earned an NSN or NATO Stock Number, making the watches readily available for purchase by and issue to military units.

Source: https://www.watchesofespionage.com/blogs/woe-dispatch/hollywood-watches-of-espionage-part-3