The Titanium Field Guide

Citizen Attesa ACT Line (CB3040 / CB3045, Super Titanium)

CB3040-56H

The Citizen Attesa ACT Line (CB3040 / CB3045, Super Titanium) is a current-production watch with a Super Titanium (proprietary) case, finished with duratect (dlc on cb3045). At 93 g it sits around the middle for watches in the guide, and is priced well under the $1,900 median across the guide. It ships on a matching titanium bracelet rather than a strap.

Titanium other watchesUnder $1,000Under 11 mm thickLightest, rankedOn a titanium braceletSolarWorldtimerPerpetual calendar
Price
$638
Titanium
Super Titanium (proprietary)
Weight
93 g
Water resistance
100 m
Reference
CB3040-56H
Type
Other
Case diameter
39.0 mm
Thickness
9.7 mm
Origin
Japan
Movement
Eco-Drive radio-controlled (multi-band)
Caliber
Citizen H128
Power reserve
Solar (about 2 years power-save)
Complications
Perpetual calendar, Worldtimer
Case shape
Round
Case colour
Black
Finish technology
DLC
Surface treatment
Duratect (DLC on CB3045)
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Super Titanium bracelet
Titanium bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Metallic; deep blue (DLC)
Dial colours
Blue
Availability
Offered
Status
Current
Not published
Lug-to-lug, Caseback, Lume Help verify
High confidence Verified Jul 2026 Source: Two Broke Watch Snobs / IPPO Japan (maker spec) Maker / listing ↗
Facts are free to cite with a link.
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CitizenBrycen Super Titanium Chronograph$59543.0 mm102.1 gChronograph

Frequently asked questions

What grade of titanium is the Citizen Attesa ACT Line (CB3040 / CB3045, Super Titanium)?

The Citizen Attesa ACT Line (CB3040 / CB3045, Super Titanium) has a Super Titanium (proprietary) case. This is confirmed against the maker spec.

What size is the Citizen Attesa ACT Line (CB3040 / CB3045, Super Titanium)?

It is 39.0 mm in diameter, 9.7 mm thick, and water resistant to 100 m.

How much does the Citizen Attesa ACT Line (CB3040 / CB3045, Super Titanium) weigh?

About 93 g.

How much does the Citizen Attesa ACT Line (CB3040 / CB3045, Super Titanium) cost, and is it available?

It is current-production and lists from $638.

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