The Titanium Field Guide

Citizen The Citizen Caliber 0100 (Super Titanium)

AQ6021-51E

The Citizen The Citizen Caliber 0100 (Super Titanium) is a current-production dress watch with a Super Titanium (proprietary) case, finished with duratect surface hardening. At 65 g it sits around the middle for dress watches in the guide, and is priced well above the $1,980 median for the category. Nothing touching the skin is nickel-bearing steel, verified across the case, caseback and bracelet.

Titanium dress watchesLightweightLightest, rankedOn a titanium braceletSolarCompact (38 mm and under)Display back
Price
$7,400
Titanium
Super Titanium (proprietary)
Weight
65 g
Water resistance
50 m
Nickel-free
Yes
Reference
AQ6021-51E
Type
Dress
Case diameter
38.0 mm
Origin
Japan
Movement
Eco-Drive light-powered, annual accuracy +/-1 s/yr
Caliber
Citizen Caliber 0100
Complications
Time only
Case shape
Round
Case colour
Natural / grey
Finish technology
Surface hardening
Surface treatment
Duratect surface hardening
Caseback
Sapphire
Bracelet / strap
Super Titanium bracelet
Titanium bracelet
Standard
Crystal
Sapphire, AR coated
Display back
Yes
Dial
Black
Dial colours
Black
Availability
Offered
Status
Current
Not published
Thickness, Lug-to-lug, Power reserve, Lume Help verify
High confidence Verified Jul 2026 Source: Citizen (maker) Maker / listing ↗
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Head to head: The Citizen Caliber 0100 (Super Titanium) vs Ming 19.01 (titanium) →

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Alternatives to the Citizen The Citizen Caliber 0100 (Super Titanium)

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CitizenBrycen Super Titanium Chronograph$59543.0 mm102.1 gChronograph

Frequently asked questions

Is the Citizen The Citizen Caliber 0100 (Super Titanium) nickel-free?

Yes. Nothing nickel-bearing touches the skin: a Super Titanium (proprietary) case with a sapphire 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 Citizen The Citizen Caliber 0100 (Super Titanium)?

The Citizen The Citizen Caliber 0100 (Super Titanium) has a Super Titanium (proprietary) case with a sapphire caseback. This is confirmed against the maker spec.

What size is the Citizen The Citizen Caliber 0100 (Super Titanium)?

It is 38.0 mm in diameter, and water resistant to 50 m.

How much does the Citizen The Citizen Caliber 0100 (Super Titanium) weigh?

About 65 g.

How much does the Citizen The Citizen Caliber 0100 (Super Titanium) cost, and is it available?

It is current-production and lists from $7,400.

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