Great question - I have 7.5 wrist size so 40+mm case is an appeal to me. Contrary to others opinions, I really like the green/yellow contrast. The watch reminds me of an Explorer black face but adds a little color (which I prefer)
Lastly, I don’t like wearing something more common in the Rolex world. Datejust, Sub etc. I guess I love the fact that it’s not a popular model