Nice. I think the 42 will look better on me as well, but haven't tried one yet.
I have the 45.5, on the rubber strap, so exactly as first seen by him in the film. (also, like yours, the 2500 movement and aluminum bezel insert, which I prefer over the later, and current, ceramic insert)
My mainspring broke so I sent it off to be refurbished by Omega and have worn it sparingly since. Such a great piece. A bit thick for what it is, but legibility can't be beat, in light or darkness!
The stainless bracelet is okay, but really heavy. Even if he did wear it on the bracelet, I wouldn't have.
The earlier mentioned Seamaster GMT I had was also on the rubber double-deployant strap. The only one I had ever seen on that strap, but it was perfect! Until the rubber dry-rotted and fell apart... The Planet Ocean strap is a better/different material, although I've been through a few keepers.