G-Shock MR-G B2100 combines the best of both worlds

What do you get when G-Shock’s popular 2100 series crosses with the handcrafted MR-G premium line? The MRG-B2100B.

The comfortable dimensions and fit of the B2100 have been retained and provided with a lightweight metal casing made of the most modern materials. As usual with the watches in the MR-G line, the watch is finished by hand by Japanese masters. This time inspired by ‘Kigumi’; a traditional Japanese decorative woodworking method, but then executed in extra hard, lightweight titanium.

G-Shock MR-G B2100 combines the best of both worlds
▴ GA-2100-1A1ER

MRG-B2100B-1ADR
▴ MRG-B2100B-1ADR

Introducing the merger of the B21000 series and MR-G

In 2022, the MRG-B5000 was released, an upgraded reproduction of the very first G-Shock model (DW-5000C). The MR-G range has since expanded, each time with reinterpretations of classic G-Shocks, such as the MRG-BF1000R-1ADR Frogman. With the MRG-B2100B, unlike previous MR-G releases, the design of the basic model (GA-2100) has not been adopted 1:1, but has been reorganized.

Stripped down design

Combining the distinctive B2100 design with multiple (digital) windows and three hands and the stylish minimalism of MR-G was no easy task. In addition, the use of a dial with high light transmittance was crucial for the solar power generation. Therefore, the MRG-B2100B has a simplified layout, with a sub-dial placed between the 7 and 8 o’clock positions, combined with a three-dimensional dial.

At the same time, the watch has a tough but high-quality look that suits MR-G. The case size of 44.4 mm wide and 13.6 mm thick may seem large, but combined with the lightness of the titanium case and strap, it feels wonderful to wear despite its heavy appearance.

MRG-B2100B-1ADR dial

27-piece bezel and high-quality polishing

G-Shock set out to make the 2100’s sleek, simple form as beautiful and strong as possible. The bezel is formed from 27 separate components rather than a single piece. Each part was ‘Sallaz’ polished before assembly to give the watch a beautiful finish, even the recessed areas.

The originally Swiss Sallaz polishing technique, for which G-Shock has developed its own machines, makes it possible to polish the watch’s characteristic case to a smooth, distortion-free surface with clearly defined edges.

Sallaz polishing
▴ Sallaz polishing

Sallaz polishing

Kigumi latticework dial

Kigumi is a traditional Japanese construction method and woodworking technique used for wooden joinery. Geometric shapes are created with great precision without the use of nails or other metal fittings. The technique has been used since the Heian period (794–1185) to build wooden structures, including shrines and temples.

The idea of ​​using woodworking in the design of the MR-G actually dates back to the time of the first MRG-B5000. When this model was developed, the structure of the cover parts of the case, which were divided into smaller parts, was already described as ‘Kigumi’.

However, the intricate three-dimensional structure of the Kigumi grid as a dial proved to be more difficult to manufacture than it appears. Before determining the size of the holes, many tests were conducted using the nano-processing and precision casting technologies of the Casio factory in Yamagata.
Finally, a balance was reached between aesthetics and feasibility. The grid-like structure of the dial is not only suitable for ensuring the amount of light required for solar energy generation through the holes, but also enhances the texture of the dial.

watch with kigumi grid

close up watch

Thinner case

G-Shock has also managed to make this watch approximately 3mm thinner than the MRG-B2000 series with a similar movement, to match the sleek shape unique to the GA-2100. At the same time, this also resulted in a reduction in the weight of the entire watch.

Made of extra hard, lightweight materials

A special Ti64 titanium alloy is used for the watch’s case, back and buttons, and the ergonomically shaped strap is also made of titanium, but an entirely different alloy known as DAT55G, a proprietary material developed by Japan’s Daido Steel Company that G-Shock claims is three times harder than the typical titanium alloy used in watchmaking.

The bezel is made of yet another type of titanium: cobarion, the same material used in the MRG-B5000. This alloy, developed in Japan, is approximately four times harder than pure titanium and has excellent scratch resistance. When polished, it has a luster comparable to that of precious metal.

More watches from the MR-G and 2100 series

The MR-G watches from G-Shock are always released in very limited editions and we are proud that Techzle is one of the selected jewelers who is allowed to sell these special watches.

Of course, we will continue to do our best to always offer you the latest 2100 series and other G-Shocks in all price ranges. You can find all special editions and our MR-G offer on our page with special and limited G-Shocks. Or visit one of our stores. If you contact us in advance, we will make sure that the watch you want to view is ready for you.

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