Monotone Mix cleans up the 6900, but I still want the square

The finish is good, but the DW-6900 is still more G-Shock than I want on my wrist. It has the big front button, three circles above the main display and a fairly broad case around all of it. Gray and black make that look cleaner, although they don't make the watch feel less busy to me.

I keep comparing this with the square DW-5600 from the same Monotone Mix release. Both have enough G-Shock character to be recognizable immediately. The square just gets to the point more quickly, and I think that suits my taste better. This one has a stronger visual personality than I personally need from a digital watch.

The largest of the basic trio

Casio lists the DW-6900MTM-8 at 53.2mm long, 50mm wide and 18.7mm thick, weighing 73g. That thickness is substantial. I give G-Shock more room than I would give a simple mechanical dress watch, because the protective structure is part of the design, but I still have to like the way it looks on me.

The case and band are resin. The gray-and-black sections are offset by silver vapor deposition around the display and a honed finish on the prominent front button. I like that button better in the silver finish than I would in another bright color. It gives the watch one clear point of contrast without adding a new color to the face.

The manufacturer lists shock resistance, 200m water resistance and mineral glass. There is a white LED backlight, stopwatch, countdown timer, alarm and automatic calendar. Battery life is rated at around five years from a CR2016. Solar charging and automatic time synchronization aren't listed here, so I would not assume this has the functions of a more expensive 6900 just because the outer shape looks familiar.

A color change can't fix my preference

The official group photograph is useful because it puts the different case shapes next to each other. The 6900 has its own look, but I find myself going straight back to the two squares. I don't think the round models are made badly because I prefer something else. I simply like the square design more, and that is what my bezel score is supposed to reflect.

I haven't worn this exact release, tested the front button or checked the display under difficult lighting. Those could change my practical impression. They probably wouldn't change which basic shape I would choose.

As of November 3, 2026, Casio calls this a November release and Time Station NEO lists November 7 in Japan. A US sale date and confirmed USD price remain unverified. I give it 55 out of 120 bezel clicks. If I were looking at this group to buy one, I would spend more time with the DW-5600 and leave this larger case on the tray.