I think the hands could be a tiny bit bigger. But, I had no issues reading the time at all. I found it to be very legible.

Here’s a photo I found with Google, illustrating the loss of color at depth due to filtration of orange / red. Then when you add a flash, the color comes back, since it’s not filtered by so many feet of water.

As a non-diver, I never really thought about that, though it now makes sense.
IMHO the oversized index marks compete with the hands for immediate recognition, but I guess expectation alters perception.

I’ve never even seen in person. Luminox uses Tritium tubes.
So, I don’t know how to compare them.

I’m not sure what your first point is referring to, exactly. Unconventional what? The size of the indexes and hands? The indices are part of what attracted me. Casio makes some watches with large indices – some of the Pro Treks and some of the G-Shocks (like the analog Frogman and Mudmaster).

Divers know that certain colors (visible light wavelengths) are lost as you go deeper in the water. Red goes away first. Orange is next. Eventually, as you go deeper, everything looks blue / gray (unless you bring artificial lighting with you). So, the orange hands and indices won’t “go dark,” but they will become grayish in color beyond 25 feet of depth. It’s neither a feature nor a bug… just Physics. 🙂

Stand by – I’ll upload a graphic: