I recall older pictures with him wearing a Panerai, but I’m not sure if this is that same one or if he has a little collection. In either case, his dedication to the brand is admirable. Clinton also had a few notable pictures with his PAM.
gave the watch a grey hue. It looks to me like a Luminor Due. In the picture you posted, the "grey" dial it's gone. I do not detect the typical..carbon fiber dial of the 180.