I believe this is correct. There are a few shots in the first movie where you see Mav wearing a Sub. These were later reshot scenes with Cruise wearing his own watch. The scene in the lift was one of these. Cruise’s hair is longer and Kelly McGillis wears a baseball cap to cover up the darker hair she then had for another role.
For us watch fans TG2 is a target rich environment - plenty of IWC models on wrists and a Rolex Explorer/Air King on Jennifer Connelly.