The Wristwatch Field Guide

Casio MR-G MRG-B2000 Kurogane-iro

MRG-B2000BG-3A

The Casio MR-G MRG-B2000 Kurogane-iro is a current-production other watch with a black titanium (ti64, deep-layer hardened, green dlc) case, finished with deep-layer hardened titanium with green dlc and arc ion plating. It measures 49.8 mm across, 16.9 mm thick, 54.7 mm lug to lug, and is water resistant to 200 m. Inside is the Casio 5666 tough solar, multi-band 6, bluetooth movement. Complications: Date. Brand origin: Japan.

Titanium and ceramic other watchesTitaniumBlack
Reference
MRG-B2000BG-3A
Type
Other
Price
–
Case diameter
49.8 mm
Thickness
16.9 mm
Lug-to-lug
54.7 mm
Water resistance
200 m
Weight
–
Origin
Japan
Movement
Tough Solar, Multi-Band 6, Bluetooth
Caliber
Casio 5666
Power reserve
–
Complications
Date
Material
Titanium
Grade / type
Titanium (Ti64, deep-layer hardened, green DLC)
Colour
Black
Hardness
–
Construction
–
Surface treatment
Deep-layer hardened titanium with green DLC and arc ion plating
Caseback
Titanium
Nickel-free
Yes
Bracelet / strap
Titanium (green DLC)
Matching bracelet
–
Crystal
Sapphire
Display back
No
Dial
Analog-digital
Lume
Neobrite
Availability
Offered
Status
Limited edition (Kurogane-iro)
Medium confidence Verified Jun 2026 Source: Casio (MRG-B2000BG-3A) / Casio (MRG-B2000RG-3A) Maker / listing ↗
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?

Yes. Nothing nickel-bearing touches the skin: a black titanium (ti64, deep-layer hardened, green dlc) case with a titanium caseback, plus a non-steel crown and bracelet and clasp. The Wristwatch Field Guide marks it nickel-free for whole-watch skin contact. If your allergy is severe, confirm the contact points with the maker.

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

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

What size is the Casio MR-G MRG-B2000 Kurogane-iro?

It is 49.8 mm in diameter, 16.9 mm thick, 54.7 mm lug to lug, and water resistant to 200 m.

How much does the Casio MR-G MRG-B2000 Kurogane-iro cost, and is it available?

It is current-production; the guide does not list a price for it.

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