The Titanium Field Guide

Casio Oceanus Classic OCW-T4000

OCW-T4000-1AJF

The Casio Oceanus Classic OCW-T4000 is a current-production other watch with a Titanium (hard coating) case, finished with hard-coated titanium. It measures 42.8 mm across, 11.9 mm thick, and is water resistant to 100 m. Inside is the Casio 5652 tough solar, multi-band 6, bluetooth movement. Complications: Date. Priced from $600 (approx; maker page bot-blocked). Brand origin: Japan.

Titanium other watchesUnder $1,000Solar
ReferenceOCW-T4000-1AJF
TypeOther
Price$600 · approx; maker page bot-blocked
Case diameter42.8 mm
Thickness11.9 mm
Lug-to-lug–
Water resistance100 m
Weight–
OriginJapan
MovementTough Solar, Multi-Band 6, Bluetooth
CaliberCasio 5652
Power reserve–
ComplicationsDate
TitaniumTitanium (hard coating)
Surface treatmentHard-coated titanium
Nickel-freeYes
Bracelet / strapTitanium
CrystalSapphire
Display backNo
DialBlack
LumeNeobrite
AvailabilityOffered
StatusCurrent; maker page bot-blocked
Medium confidence Verified 2026-06-23 Source: Casio Maker / listing ↗
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