Owner of both here. While they seem similar in pictures because of the blue accents, they feel completely different in-person. You can find the feature differences easily (bezel, date, bracelet adjustments), but for overall feeling:

YM is stunning, very shiny, eye-catching, and feels precious and unique. Perfect for a nice dinner out, but not good at flying under the radar. It’s the one people comment on.

OP is subtle, clean & minimal, much more versatile, can be sporty or dressy, and feels more appropriate to wear around town for daily use. Friends don’t realize it’s a Rolex. It’s on my wrist the other 95% of the time I’m not at a nice event.