The Wristwatch Field Guide

Casio Oceanus Classic OCW-T4000

OCW-T4000-1AJF

The Casio Oceanus Classic OCW-T4000 is a current-production watch with a titanium (hard coating) case, finished with hard-coated titanium. At 90 g it sits around the middle for watches in the guide, and is priced well under the $1,500 median across the guide.

All Casio watchesExotic-material other watchesTitaniumUnder $5,000
Price
$600
Material
Titanium
Grade / type
Titanium (hard coating)
Weight
90 g (with bracelet)
Water resistance
100 m
Reference
OCW-T4000-1AJF
Type
Other
Case diameter
42.8 mm
Thickness
11.9 mm
Origin
Japan
Movement
Tough Solar, Multi-Band 6, Bluetooth
Caliber
Casio 5652
Complications
Date
Colour
Grey
Surface treatment
Hard-coated titanium
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Titanium
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Lume
Neobrite
Availability
Offered
Status
Current
Not published
Lug-to-lug, Power reserve, Hardness, Construction, Caseback, Matching bracelet
Medium confidence Verified Jun 2026 Source: Casio Maker ↗
Facts are free to cite with a link.
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Alternatives to the Casio Oceanus Classic OCW-T4000

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Frequently asked questions

What is the case material of the Casio Oceanus Classic OCW-T4000?

The Casio Oceanus Classic OCW-T4000 has a titanium (hard coating) case. It is recorded at medium confidence pending a maker-stated material.

What size is the Casio Oceanus Classic OCW-T4000?

It is 42.8 mm in diameter, 11.9 mm thick, and water resistant to 100 m.

How much does the Casio Oceanus Classic OCW-T4000 weigh?

About 90 g (w/ bracelet).

How much does the Casio Oceanus Classic OCW-T4000 cost, and is it available?

It is current-production and lists from $600.

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