But my personal choice without a moment's hesitation would her 5050. Full perpetual with moonphase, retrograde date and sweep seconds. And (at least at this point in time) vastly under appreciated and undervalued. And to my eye, exceptionally beautiful.
Best, Patekova
PS A BIG! thank you for all your well researched posts tracing the history of various models and complications, all illustrated with beautiful photos, many of which are of rare models. These are the type of scholarly posts that the Forum benefits greatly from and that unfortunately appear only infrequently!