Actually, I believe 317 is thicker...
By: Blue_Orca : April 2nd, 2011-15:46
At least when you compare the movements, P.2004 is thicker already. If you go to the Panerai web site and click on the in-house movements, you can see the size on the P2003 vs. P2004. P.2003 is 31mm x 8mm large. P.2004 is 31mm x 8.2mm. I had a 270 before ...