Not sure I have seen you post this before — but, likely my favorite of the watches in your collection that I recall. Thanks for the extra context for the blue III. Love that.
It has a very personal (and sentimental) meaning to me. As for the bezel,this is made out of white gold to allow for the hand applied guilloche (steel is too hard to do this).
Also great to hear you were able to have something put on the dial that is very personal and has special meaning to you and that really must make the watch even more special for you. Wear and enjoy it in good health. Marc