My current watch (every day, but works with suits, love it). Parmigiani Kalpa Grande XL.
Warning: Spoiler! (Click to show)
I had a white gold Daytona years ago. Overall, nice watch but I never warmed up to it. The dial and bezel were slightly different from my SS Daytona, but it just looked too similar for a lot more money. It just never looked or felt any more special than my SS versions. So I sold it. If I were ever buying another gold Daytona, it would be the rose gold. Hopefully, your bosses will let you wear them a bit and have some fun.
That was my one experience with a white gold watch. Personally, I don't think I'd choose a white gold watch again. Platinum, is a completely different matter. I would buy a platinum watch if I liked the design enough. Platinum, has some serious heft to in in terms of feel on the wrist, even when used on a dress watch, and I like that. I can also appreciate that its more difficult to work with, that per ton of raw ore far less platinum can be produced compared than gold, its far rarer, and its more durable. If you scrape platinum it can be repolished many times and none of the metal is lost its just been moved. When you polish gold actual metal is lost.
To me white gold has none of those qualities, it often looks more gray than pure white so it is frequently plated with rhodium or other whiter metals, and its really not any more distintive than steel on a watch. It also may not help that one of my friends used to call white gold..."The poor man's platinum." If spending money on watch with a gold case, most times choose rose. It has some color, but its more subtle than yellow gold can look on some watches. I don't own any platinum watches, but I hope to have at least 1 some day.
25K is a good price, would have bought if I could spend those cash right away. It's a beauty. Need to start low with my AP first :D