I have a big birthday coming up next month and want to get a really special watch to celebrate (or maybe ease the pain of how old I am!) I can't decide between a pre-owned white gold Cartier Tank Americaine or a steel Patek twenty-4. I would love the small rose gold twenty-4 but that is way out of my price range. Which do you think is most wearable? Is the Patek mostly for dress wear? Also a jeweler advised me that white gold eventually wears off to show yellow. Has this happened to anyone?