Casio G-Shock MT-G 20th Anniversary Rainbow

The Next Rainbow Unicorn? A Closer Look At The Casio G-Shock MT-G 20th Anniversary Rainbow

The MT-G line celebrates its 20th Anniversary with a new rainbow-hued timepiece.

By Rhonda Riche

The G-Shock MT-G is turning 20 this year, and like most Gen Z'ers, it is throwing a party with rainbows and unicorns – well maybe not unicorns.

You can’t compare the finish of a G-Shock to a Grand Seiko, but you can still admire the innovation that both Japanese brands bring to their collections. Take, for example, the recently launched Casio G-Shock MT-G MTGB1000RB-2A aka the 20th Anniversary Rainbow MT-G.

Casio G-SHOCK GMW-B5000V, Casio G-SHOCK MR-G & Casio G-SHOCK MT-G 20th Anniv

The latest entry from G-shock’s luxury MT-G connected collection, this limited edition timepiece generated a lot of excitement when it was unveiled at Baselworld 2019, and here’s why.


First of all, Casio has been exploring the possibilities of watchmaking materials and technology for ages. Whether it's the Hammer Tone MR-G decorated with the traditional tsuiki finish or the Carbon Core Guard construction of the new G-Shock Mudmaster, Casio has always come up with a way to make tough watches even more innovative. Last fall, Watchonista covered two of our favorite G-Shocks, the MT-G (read HERE) and MR-G (read HERE).

But G-Shocks have also always had an aesthetic allure, which is why they are so appealing to collectors. For example, while rainbow watches are having a moment (think Rolex, Hublot, Jacob & Co., Corum, et al), the MT-G B1000RB-2A offers a more subdued take on the trend.

Casio G-SHOCK MT-G 20th Anniversary Rainbow

Casio says the bezel of the MT-G B1000RB-2A is inspired by a lunar rainbow — a meteorological phenomenon that is formed from the light of the moon. Just as these weather events cast a unique prismatic effect, the color changes on the bezel are different for each timepiece.

This rainbow color is achieved by ion plating that colors the metal blue and yellow with the hues shifting to violet or green when you angle the case. The rainbow bezel is the most memorable visual, but there is a wide range of colors used around the dial — the hands and numbers feature slightly different hues for a full spectrum effect.

Casio G-SHOCK MT-G 20th Anniversary Rainbow


Sure, the rainbow styling of the MT-G B1000RB-2A is in vogue, but it incorporates the look without comprising the toughness that G-SHOCK is known for. This upscale timepiece takes G-SHOCK's Triple G Resist technology and core guard structure as its frame. All of the latest MT-G B1000RB models use this sleek and strong but lightweight case. It also employs a scratch-resistant sapphire crystal with a non-reflective coating to provide high readability even on the sun's shiniest of days.

Casio G-SHOCK MT-G 20th Anniversary Rainbow

In addition, the B1000RB has many useful functions, including a world-time, day, date, alarm, and stopwatch. It's worth noting, the feature set of this Rainbow-hued MT-G is identical to last year's model, which you can read about HERE.


So the MT-G B1000RB-2A is not only handsome and handy, but it is also a state of the art when it comes to technology. Amongst its many advances are Two-Way Time Sync, which combines Bluetooth connectivity and the G-SHOCK Connected App for providing accurate timekeeping. Furthermore, it's built with self-adjusting Multi-Band 6 atomic timekeeping for an accurate hour/date display virtually anywhere on the globe.

This model also has tough solar technology so you can self-charge without having to carry a ton of extra cables with you.

Casio G-SHOCK MT-G 20th Anniversary Rainbow

Of course, the MT-G Rainbow comes equipped with all the standard G-SHOCK specs, such as 200M water resistance, shock resistance, Super Illuminator, world time (39 time zones plus 27 cities), dual dial display, fully automated LED light, stopwatch and countdown timer, daily alarm, and a full auto calendar.

And as far as unicorns go, the 20th Anniversary Rainbow MT-G is destined to become part of the G-Shock mythology as time goes by.

Casio G-SHOCK MT-G 20th Anniversary Rainbow

The MT-G B1000RB-2A will retail in limited quantities for $1,000 and will be available for purchase beginning in June.

(Photography by Liam O'Donnell)

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