Well the little color system seems very well thought out, unless you have shag carpet. But I so Mike can order more from Seiko
I will say that my old turtle doesn't have that same system.
But I will also say that the movement in this is a very good movement, the size and presentation on my wrist is excellent. Even though I have more expensive Swiss watches, I think this one is going to be my favorite. I also bought an orange fade PVD stainless steel, which I believe is SRP 311?
I did not post this one because Massdrop sent me the wrong model. i ordered a SRP311 Orange fade, PVD. But I am stuck with this one. They cannot get me the watch I ordered for 6 weeks. So I am keeping the SRP 315K2. And now I really like it.
Now to size it........ugh