SteveW
204
Sell the least desirable...
...if you see any flaws or functional problems now, then they will only become more obvious over time. Give someone else a chance to own such a beautiful and historic watch and look for a different rarity.
Of course, if you can't determine which is the least desirable then I guess you had better keep them both. That's what I had to do: the various good and bad points cancelled out each other.