Which RDW4fa Watch(es) do you think I should add to my collection?

Arigato (Thank you) for your advice in this matter! I wrote 5 books on watches and use abbreviations in them to save space. RDW = Round Dress Watch, and 4fa = 4-function (hour, minute, second %26amp; date) automatic (self-wind)! I own over 50 watches, including some nice RDW2fm (hour %26amp; minute only manual-wind) models by Patek Philippe, Vacheron Constantin, Cartier, Piaget, etc. and a few RDW3fm (hour, minute %26amp; second manual-wind) watches by LeCoultre, Tiffany %26amp; Co., IWC, etc., but my 4fa watches are all Sports Models, so I need a few Dress Models as well. Here are some current models I am considering. Which one or ones should I purchase first do you think?


$25,800R (18kt rose gold) A. Lange %26amp; Sohne "Saxonia 315"


$23,800R, W (18kt white gold) Patek Philippe "Calatrava 5296"


$20,650Y (18kt yellow gold),$21,600W Breguet "Classique 5177"


$20,100W Audemars Piguet "Jules Audemars 15120BC"


$19,300R Paul Picot "Atelier Classic"


$19,100R Vacheron Constantin "Patrimony Contemporaire"


$18,100R Hermes "Dressage DR1.770"


$17,300R Cartier "Ballon Bleu"


$16,100R Parmigiani "Kalpa Tonda"


$15,000R Corum "Romulus 41"


$13,600R Omega "DeVille 431"


$12,800R Glashutte Original "Senator Sixties"


$12,600R Blancpain "Villeret 5223"


$12,450R Chopard "LUC Twin Jose Carreras"


$11,999R Ball "Trainmaster NM1098D"


$11,500R Girard-Perregaux "1966"


$10,800R Faberge "Agathon M1102"


$10,500R Eterna "Vaughan 7360"


$7000R IWC "Portofino"|||There are several considerations in such a choice as this one. One is to consider the movements, and that's an esoteric subject. The Ball, Cartier, IWC, Omega and Paul Picot use generic ETA 2892 movements, so you can do better than that. Frederic Piguet movements are somewhat more exclusive and used in the Blancpain, Corum and Faberge models. Hermes now uses Vaucher movements, so it's fairly exclusive too. Breguet movements are works of art, whatever their source. Piaget made some, and LeMania made some. Now I think LeMania has merged with Breguet and the movements are just labeled Breguet. Some brands use their own movements and are thus much more exclusive than the ones already listed. Brands using their own movements include Audemars Piguet, Chopard, Eterna, Girard-Perreagux, Glashutte Original, A. Lange %26amp; Sohne, Parmigiani, Patek Philippe and Vacheron Constantin. Patek Philippe's new Calibre 324SC used in the "Calatrava 5296" you list is also used in modified form in other models, including an annual calendar, and it's quite innovative and advanced, so extra consideration should be given to the watch using it. Patek Philippe's other watches of the type you specify use the older calibre 315SC that is less advanced, so by all means buy the "5296". It's a great investment, as some other answers said. Patek Philippe holds its value best of the top brands, so every man who owns costly watches should own several Patek Philippes.|||One of my contacts answered a similar question to this one, and she said that the Patek Philippe is the best investment, because it holds its value best and sells for higher prices at auctions than other brands. The costliest ones are surely the best ones to buy, if you can afford them, and you say you could buy them all. If you want four, buy the A. Lange, Patek, Breguet and Audemars I think.|||I think first buy Patek Philippe, A. Lange %26amp; Sohne, Vacheron Constantin and Breguet, these brands all hold value, are great watches, if want more next buy Audemars Piguet, Blancpain and Cartier, some brands use generic ETA movements, charge high prices of them, not buy Ball or Paul Picot.|||I answered a simpler version of this question recently. A man was considering Patek Philippe, Vacheron Constantin and Audemars Piguet. I can tell you much the same thing I told the other man. Patek Philippe is the king at auctions, so you should buy it as an investment for certain. The other man bought the Patek "Calatrava 5296R" that is one of your choices, and I think you should too. You already have a "RDW2fm" Patek, so a "RDW4fa" Patek goes well with it. Breguet, Vacheron and A. Lange are next to Patek in prestige, so buy them next. Good third choices would be Audemars, Cartier, Parmigiani and Glashutte I think.|||Go the whole hog and buy the lot at once!!