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Casio G-SHOCK MR-G MRG-B2100R-2A: Design, Specs and Launch Price

The MR-G MRG-B2100R-2A pairs a deep-blue kigumi-inspired dial with a 27-part polished bezel, solar and connected timekeeping, and a €4,000 European launch price in 2025.
Estimate2–3 min Catalogued SpecialistWatchRanker Team
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The Casio G-SHOCK MR-G MRG-B2100R-2A is an analog MR-G watch distinguished by a deep-blue dial inspired by Japanese ink-wash painting and calligraphy, plus a bezel assembled from 27 individually polished components. Casio Europe announced it for February 2025 at a recommended retail price of €4,000; that is its European launch price, not a current or worldwide quote.

What is the MRG-B2100R-2A?

It is a premium G-SHOCK MR-G model with an analog display, solar power, radio time calibration and Bluetooth connectivity. Casio’s European product description says, “The dial is inspired by the traditional Japanese art of interlocking woodwork called kigumi.” Its blue color also draws on Ao-zumi ink associated with Japanese ink-wash painting and calligraphy.

The dial uses a two-part construction for its index marks, creating depth in the latticework design. Casio says the bezel interlocks 27 components, each individually precision polished. A Multi-guard Structure uses flat springs and silicone buffers as part of the watch’s shock-resistant construction.

What makes its materials and construction distinctive?

Casio lists titanium and Cobarion for the case and bezel. The company describes Cobarion as about four times harder than pure titanium; this is Casio’s material description, not an independent comparative test. The watch has a resin band, not an all-metal bracelet. Casio’s launch description highlights the Dura-Soft band and titanium components at the band-to-case connection.

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G-Shock Casio Metal Covered Octagonal Black Resin Band Watch GM2100-1A
  • Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way
  • Super LED Light
  • Shock Resistant
  • Mineral Glass

MRG-B2100R-2A specifications

Specification Casio Europe listing
Case size 49.5 × 44.4 × 13.6 mm
Weight 110 g
Case and bezel Titanium / Cobarion
Band and clasp Resin band; one-touch three-fold clasp
Crystal Sapphire crystal with anti-reflective coating
Construction Shock resistant and magnetic resistant
Water resistance 200 metres (20 bar)
Time adjustment Multi Band 6 radio control and Bluetooth smartphone time adjustment
Power Tough Solar
Smartphone app CASIO WATCHES: automatic time adjustment, easy watch settings, time and place, status display, self-check and phone finder

Specifications are from Casio Europe’s MRG-B2100R-2A product page.

Price and release timing

Casio Europe’s release announcement said the MRG-B2100R-2ADR would be available from February 2025 for a recommended retail price of €4,000 through Casio.com and selected specialist retailers. This is a historical European launch price. It does not establish today’s price, stock, or pricing in another region. Casio’s US product page did not provide a current price or inventory status in the information available here.

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G-Shock Casio G-Steel Solar Connected Blue Dial Black Resin Strap Watch - GBM2100A-1A2
  • Metal-clad daring meets sophisticated gleam in this Casio G-Shock that delivers Smartphone Link via Bluetooth(R) and Tough Solar charging system, all in a meticulously finished metal design with iconic octagonal bezel
  • This model features a blue metallic vapor deposition dial that is complemented by a black band made of environmentally responsible bio-based resin

Casio Computer Co., Ltd.’s FY2025 results briefing later described MRG-B2100R sales as “firm worldwide.” The cited passage gives no model-specific sales units or revenue, so it cannot establish how many watches sold.

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What to check before buying

  • Confirm the exact reference and regional variant with the seller; the release announcement identifies the European version as MRG-B2100R-2ADR.
  • Check current price, availability, warranty coverage and return terms directly with Casio or the retailer. The 2025 announcement is not evidence of present stock.
  • Decide whether the 49.5 mm-long case and 110 g weight suit your wrist and wearing preferences.
  • If replacing the band, verify the exact part’s compatibility with this model before ordering; a general band-size match alone does not confirm fit.

Sources: Casio Europe product page; Casio Europe February 2025 launch announcement; Casio Computer Co., Ltd. FY2025 results briefing.

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G-Shock Casio G-Steel GM2110D Analog-Digital Navy Blue Dial Stainless Steel Watch 43mm - GM2110D-2B
  • Introducing the GM-2110D - an analog-digital combination G-STEEL based on the GA-2100, now with a stylish metal bezel and band update
  • Meticulously forged and polished, the uniform octagonal stainless-steel bezel anchors a simple, no-fuss design with a sophisticated, yet tough look
  • Choose from, sky blue, orange, or lime green, in addition to classic hues of navy and silver

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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