The Titanium Field Guide

Casio MR-G MRG-B2100 Titanium

The Casio MR-G MRG-B2100 Titanium is a current-production watch with a Grade 5 (Ti64) titanium case, finished with titanium with cobarion bezel; dat55g titanium band. At 122 g it sits among the heavier watches in the guide, and is priced well above the $1,899 median across the guide. Nothing touching the skin is nickel-bearing steel, verified across the case, caseback and bracelet.

Titanium other watchesLightest, rankedGrade 5 titaniumSolar
Price
$4,500
Titanium
Grade 5 (Ti64)
Weight
122 g (with bracelet)
Water resistance
200 m
Nickel-free
Yes
Type
Other
Case diameter
44.4 mm
Thickness
13.6 mm
Lug-to-lug
49.5 mm
Origin
Japan
Movement
Tough Solar, Multi-Band 6, Bluetooth
Caliber
Casio 5718
Complications
Date
Case shape
Round
Case colour
Natural / grey
Finish technology
Natural finish
Surface treatment
Titanium with COBARION bezel; DAT55G titanium band
Caseback
Titanium
Bracelet / strap
Titanium (DAT55G)
Crystal
Sapphire
Display back
No
Dial
Black (kigumi lattice texture)
Dial colours
Black
Lume
Neobrite
Availability
Offered
Status
Current
Not published
Reference, Power reserve, Titanium bracelet
High confidence Verified Jul 2026 Source: Casio Maker / listing ↗
Facts are free to cite with a link.
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Frequently asked questions

Is the Casio MR-G MRG-B2100 Titanium nickel-free?

Yes. Nothing nickel-bearing touches the skin: a Grade 5 (Ti64) titanium case with a titanium caseback, plus a non-steel crown and bracelet and clasp. The Titanium Field Guide marks it nickel-free for whole-watch skin contact. If your allergy is severe, confirm the contact points with the maker.

What grade of titanium is the Casio MR-G MRG-B2100 Titanium?

The Casio MR-G MRG-B2100 Titanium has a Grade 5 (Ti64) titanium case with a titanium caseback. This is confirmed against the maker spec.

What size is the Casio MR-G MRG-B2100 Titanium?

It is 44.4 mm in diameter, 13.6 mm thick, 49.5 mm lug to lug, and water resistant to 200 m.

How much does the Casio MR-G MRG-B2100 Titanium weigh?

About 122 g (w/ bracelet).

How much does the Casio MR-G MRG-B2100 Titanium cost, and is it available?

It is current-production and lists from $4,500.

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