With the introduction of the P.3000 movement, it would seem that Panerai may no longer use the Unitas 6497 movement. In comparison, both the Unitas and the P.3000 share the same size, i.e. 16 1/2 ligne, with the P.3000 thicker at 5.3 mm compared to the Unitas at 4.5 mm. The P.3000 movement has 4 more jewels as compared to the Unitas 6497.