Casio Oceanus Classic OCW-T4000

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 $1,900 median across the guide.

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Price

$600

Titanium

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

Case shape

Round

Case colour

Natural / grey

Finish technology

Surface hardening

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, Caseback, Titanium bracelet Help verify

Medium confidence Verified Jun 2026 Source: Casio Maker / listing ↗

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