Personally i build a bond with the two.
I start collecting watches when the two launched.
I had an eye on the chronometer diver (blue) and almost bought it. The bad guy who canceled the chronometer diver was my Omega Seamaster which was easier to get while the dealer is not that far away.
A second chance is in the air, and the theme is world timer.
I do not discovered an UN world timer, and i demand a world timer with a globe on the dial like the Omega Seamaster aqua terra world timer. Again a strong competitor from Omega which make it UN difficult to find my wrist.
And with the X theme, UN flows away from my destination like a candle lose burning matter.