You can see the marked difference in sleeve lengths here
And another shot of an obviously longer sleeve
In these three photos you can see how articulate the "artificial" wrist is.
Closeup of flexible wrist
And another very articulated wrist shot
These two shots are of the "bending gun" trick.
If you look closely you can see where the gun is cut to facilitate the bending effect
Here you can see this massive metal arm mechanism that displays no apparent means of independent wrist
movement.
And here is the arm dangling from a train window's handle. Bond cleverly remarks that he had just "disarmed"
the bad guy. Ho-ho-ho.