Sanaa Lathan wears a Suunto X6M

Alexa Woods is introduced doing the thing the rest of Alien vs. Predator forgets she is good at. Before the pyramid, before the Predators, Sanaa Lathan's character is an ice guide, pulled off a climbing job to lead Charles Bishop Weyland's people down through two thousand feet of Antarctic ice to a structure nobody on the surface can see. She is the one who keeps insisting, correctly, that the expedition is moving too fast to be safe.

The watch on her wrist is built for exactly that job. A watch-spotting catalogue identifies it as a Suunto X6M, and while that is a single source for the precise model, the broader fact that Lex wears a Suunto wrist-top computer turns up in more than one place. The X6M is not really a watch so much as a small instrument panel. It carries an altimeter, a barometer, a compass, and a thermometer, the cluster mountaineers call ABC, plus a clinometer for reading the angle of a slope and an altitude alarm that warns you how fast you are dropping.

Read that feature list against what Lex is actually doing and it stops looking like set dressing. A guide lowering a team down a vertical shaft into the ice wants to know precisely how deep she is, how fast she is descending, and how cold it is getting. The barometer warns of weather she cannot see coming. The compass matters in a place with no landmarks at all. The film never asks the watch to do any of this on screen, and it does not have to. Putting the right instrument on the one careful professional in the group is a quiet piece of characterization, and Lex is the only member of the expedition who walks back out of the ice alive.