Sam Neill wears a Citizen Solar 4110 571045 K watch in the 1989 movie Dead Calm.

The Citizen watch has a square case with analog movement, small date window and a solar power dial with green stripes. The case has 3 dots on each side of the face.

Identifying numbers mentioned on the case back for this model are:
4110 571045 K
37-6051
GN-4W-S
Japan -> 9

This solar Citizen model is very rare. There was one offered on eBay which provided great photos of the watch.

Dead Calm is a 1989 Australian film directed starring Sam Neill, Nicole Kidman (who wears a Citizen dive watch) and Billy Zane.