Also, does he wear it on his right wrist so that people can see his watches in photos when he shakes hands? I know he is right-handed and a watch collector.
Blue dial flieger with small crown... IWC hands... Or maybe the visually identical petite prince at 40mm. Looks like a 36mm to me though.
I recall that he wore a Lange Up and Down a few years ago. This certainly is something other than that.
Perhaps he wears it on his right wrist for the same reason I wear mine on the right wrist...... Just because I do!
I think your right, the blue is from the AR coating. Its not the blue face Petite Prince XVII as that has a white date wheel. XVII in black is the much closer match. 41mm
I could not imagine he would wear a watch that has the word 'petite' in the name... (nor 'prince' for that matter...)
National Geographic's interview series with Russian President Putin already showed an IWC at his wrist...