Seiko SKX009 - Robert Redford - All Is Lost
The watch seems to be a Seiko SKX009 / SKX007, but it might also be a SKX175 which is almost identical, but the modelnumber for the American market. The reason it seems to be the SKX009 / SKX175 and not another similar Seiko model is the Pepsi (red and blue) bezel, date window, the triangle shape at the 12 o'clock position and the round indices.
The Seiko SKX009 features an automatic movement, unidirectional Red and Blue ion-plated bezel, and is 200m water-resistant. The watch normally comes with a black rubber strap or metal bracelet, but often the watch is put on a nylon strap as well.
This Seiko diver's watch is a classic and is still produced. Get the SKX009 on Amazon.com, or the SKX175 on Amazon.com. Complete the watch to make it the same as Robert Redford's version, with a navy NATO nylon strap (the lug width of the Seiko SKX009 watch is 22mm).
UPDATE September 2019: the newly released Seiko 5 Collection is based on the SKX007 case design, but it doesn't have the screw in crown or lume dot at 12 o'clock on the bezel. With this new Seiko 5 collection, Seiko takes a new direction and seems to stop the production of the all-time classic SKX007 model. Many fans are highly disappointed in that especially because the Seiko 5 doesn't give the same water resistance, screw in crown but is more expensive than the SKX007. The Seiko 5 series DOES have a new (and according to Seiko better) movement. But it might be best to quickly buy the SKX009/SKX007/SKX175 while supplies last.
Thanks to Heboil for the photo of the Seiko SKX009 with NATO strap