The Wristwatch 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 grey super titanium (proprietary) case, finished with duratect surface hardening. It measures 38.0 mm across, 65 g, and is water resistant to 50 m. Inside is the Citizen Caliber 0100 eco-drive light-powered, annual accuracy +/-1 s/yr movement. Complications: Time only. Priced from $7,400. Brand origin: Japan.

Titanium and ceramic dress watchesTitaniumDisplay back
Reference
AQ6021-51E
Type
Dress
Price
$7,400
Case diameter
38.0 mm
Thickness
Lug-to-lug
Water resistance
50 m
Weight
65 g
Origin
Japan
Movement
Eco-Drive light-powered, annual accuracy +/-1 s/yr
Caliber
Citizen Caliber 0100
Power reserve
Complications
Time only
Material
Titanium
Grade / type
Super Titanium (proprietary)
Colour
Grey
Hardness
Construction
Surface treatment
Duratect surface hardening
Caseback
Sapphire
Nickel-free
Yes
Bracelet / strap
Super Titanium bracelet
Matching bracelet
Standard
Crystal
Sapphire, AR coated
Display back
Yes
Dial
Black
Lume
Availability
Offered
Status
Current
High confidence Verified Jun 2026 Source: Citizen (maker) Maker / listing ↗
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Frequently asked questions

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

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

The Citizen The Citizen Caliber 0100 (Super Titanium) has a grey 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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