The watch that I miss in my collection is the Reverso.
My watchmaker showed me several models and we even discussed the engraving on the backside, but at the time, about 10 years ago, I felt that the Reverso was to old fashion and bought the Jaeger-LeCoultre Master Grande Taille instead.
I've never regretted that I bought the MGT, but are still thinking of a personalized Reverso and made a “photoshop” with the engraving on the back...
... and the watch I wear today
Best Regards
Livius