Casio MR-G MRG-B2000 Kurogane-iro

MRG-B2000BG-3A

The Casio MR-G MRG-B2000 Kurogane-iro is a current-production watch with a titanium (ti64, deep-layer hardened, green dlc) case, finished with deep-layer hardened titanium with green dlc and arc ion plating. The maker states no nickel-bearing steel at any skin-contact point, across the case, caseback and bracelet.

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Material

Titanium

Grade / type

Titanium (Ti64, deep-layer hardened, green DLC)

Water resistance

200 m

Reference: MRG-B2000BG-3A
Type: Other
Case diameter: 49.8 mm
Thickness: 16.9 mm
Lug-to-lug: 54.7 mm
Origin: Japan
Movement: Tough Solar, Multi-Band 6, Bluetooth
Caliber: Casio 5666
Complications: Date
Colour: Green
Surface treatment: Deep-layer hardened titanium with green DLC and arc ion plating
Finish technology: Coloured DLC
Caseback: Titanium
Nickel-free: Maker states none
Bracelet / strap: Titanium (green DLC)
Crystal: Sapphire
Display back: No
Dial: Dark blue-green (kurogane-iro)
Dial colours: Blue Green
Lume: Neobrite
Availability: Offered
Status: Limited edition (Kurogane-iro)
Not published: Price, Weight, Power reserve, Hardness, Construction, Matching bracelet

Medium confidence Verified Jul 2026 Source: Casio (MRG-B2000BG-3A) / Casio (MRG-B2000RG-3A)

Facts are free to cite with a link.

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Frequently asked questions

Is the Casio MR-G MRG-B2000 Kurogane-iro nickel-free?

On the maker's published specification, no nickel-bearing steel touches the skin: a titanium (ti64, deep-layer hardened, green dlc) case with a titanium caseback, plus a non-steel crown and bracelet and clasp. That is what the guide records rather than a test of the watch, so confirm the contact points with the maker before buying if you react to nickel.

What is the case material of the Casio MR-G MRG-B2000 Kurogane-iro?

The Casio MR-G MRG-B2000 Kurogane-iro has a titanium (ti64, deep-layer hardened, green dlc) case with a titanium caseback. It is recorded at medium confidence pending a maker-stated material.