I too feel quite disappointed and let down by this move. Agree with Robin that As a owner of the 1858 blue, this move dilutes my ownership experience of the watch. This is my own personal humble opinion. Sad to say that I Am now thinking of Selling the 1858 blue away and getting a Montblanc villeret with enamel dial, similar to what Robin has, if I can find one.
However This is my initial gut reaction. Let's see how it goes after I have internalized it more over time and whether I can accept it.
Best regards,
Clement