Gray and black are enough to make this square G-Shock work
G-Shock: 99/120 bezel clicks. DW-5600 Monotone Mix

This is much closer to what I want from a new G-Shock color release. The square case is still the main event, and the gray and black make the individual parts easier to see without putting a giant collaboration logo across the front. I like the silver-looking face and the little bit of metal showing at the strap hardware.
The DW-5600MTM-8 is the simplest-looking member of Casio's Monotone Mix group to my eye. There are round versions and a more elaborate mixed-material square as well, but I would start with this one. I don't need the watch to be more complicated just because Casio has found another way to build the band.
A familiar square in gray and black
Casio lists a 48.9mm length, 42.8mm width and 13.4mm thickness, with a weight of 58g. Those are case measurements, so the 48.9mm number should not be read as the diameter of a round watch. The main resin components include bio-based resin, and the band is resin as well. The clear positive digital display is part of why this particular treatment works for me.
The black sections break up the gray case and strap, and the silver vapor-deposition treatment around the display adds a bit of contrast. I think it looks better with that variation than it would as one flat gray object. It still has the slightly awkward, useful shape that makes a square G-Shock appealing in the first place.
The standard practical package is here: shock resistance, 200m water resistance, mineral glass and an LED backlight. Casio quotes approximately five years from a CR2016 battery. It also has a stopwatch, countdown timer, alarm and automatic calendar. I would want solar power and automatic time correction if I were choosing strictly for convenience, but those features aren't listed on this reference.
I would keep the decision fairly simple
I own a DW-5000R, and that is still the shape of G-Shock I tend to come back to. This new version doesn't give me a reason to pretend I suddenly need several digital displays or a completely different case. It gives me a color combination I like on a shape I already like.
I haven't worn the MTM or checked the display at different angles. The official front view looks clear, but that is still something I would verify on an actual watch, along with the feel of the supplied strap.
As of November 3, 2026, Casio identifies this as a November release; a confirmed US price and US order date remain unknown here. I give it 99 out of 120 bezel clicks. The restrained gray-and-black finish is enough of a change for me, and I would want to see this positive display before getting tempted by the more complicated bracelet version.

Image: Casio 
Image: Casio
Key specs
| Brand | G-Shock |
|---|---|
| Model | DW-5600 Monotone Mix |
| Reference | DW-5600MTM-8 |
| Price | Unknown |
| Availability | Casio: November 2026; retailer: November 7 Japan. Confirmed US pricing and order timing unknown. |
| Case dimensions (length ×width ×thickness) | 48.9 ×42.8 ×13.4 mm |
| Width | 42.8 mm |
| Weight | 58 g |
| Movement | Battery-powered digital quartz |
| Battery life (manufacturer estimate) | 5 years, CR2016 |
| Water resistance | 200 m |
| Crystal | Mineral |
| Solar / automatic sync | Not listed on this exact reference |
Source-based first look; no hands-on testing of this exact release is claimed. Brand relationship not established in the retained source record.