I saw the Lange One Mother-of-Pearl dial once at the retailer Sincere and for the longest time, would have loved to buy that for my wife - the Little Lange Version. But then again, its not cheap especially when it comes with a diamond bezel.
Honestly, I can wear this any time. I don't find this too feminine at all. A well engraved MOP dial can only bring out the best in the Lange One. Check out my post on my first dream watch, the Lange One.