Sam Rockwell wears a Diesel DZ7076

Sam Bell has spent nearly three years alone mining helium-3 at the Sarang station, talking mostly to the robot GERTY and counting down the weeks until his contract ends and he goes home. The evidence frame catches him on the lunar base, the watch sitting on his wrist the way it does through most of the film, an oversized piece on a man who has no one around to read the time to.

The watch is a Diesel DZ7076, a large quartz chronograph with multiple subdials on a dark strap. The identification comes from watch-id.com, which keeps a dedicated page for it, and is backed by a separate costume-replication writeup that traced Bell's watch to the same DZ7076, with Diesel credited in the film. The screen image is dim, so this reads as a strong likelihood rather than a certainty. If you can confirm or correct the reference from a clearer still, the comments are open.