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OCW-S400RL-8AJR

Name: OCW-S400RL-8AJR
Brand: CASIO
SKU: OCW-S400RL-8AJR
Price: 172100.0 JPY
Availability: OutOfStock

¥172,100 JPY

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This classic-style OCEANUS combines a semi-matte gradient dial with a sapphire-glass bezel ring. Laser processing gives the bezel's upper surface a softly frosted appearance that diffuses light and brings out its color. A fully vegetable-tanned cowhide band from Tochigi Leather, established in 1937, softens with wear and develops a natural patina. The combination emphasizes understated finishing and long-term character.

Reference: OCW-S400RL-8AJR
Case (H × W × D): 46.5 × 41.3 × 9.2 mm
Weight: 38 g
Listed water resistance: 10-bar water resistance

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Before & after your purchase

Read our shipping and return information before ordering. Model-specific warranty and repair guidance is available below.

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Setup & support

Model reference: OCW-S400RL-8AJR

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Warranty & service

Local warranty service outside Japan is not guaranteed. Read our return and repair policy and ask about your exact reference before ordering.

Bracelet fit & adjustments

Check the case dimensions and band details in the specifications. Ask us about fit, included links and adjustment options before placing an order.

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Product details

Model: OCW-S400RL-8AJR
JAN / EAN: 4549526427572
Band material: Leather band
Crystal material: Sapphire crystal
Weight: 38 g
Case size (L × W × H): 46.5 × 41.3 × 9.2 mm
Price: ¥172,100 JPY
Country of origin: JP

Specifications

Release date	August 2026
Case size (H × W × D)	46.5 × 41.3 × 9.2 mm
Weight	38 g
Case and bezel material	Titanium / sapphire glass; Sapphire-glass bezel ring
Band	Genuine leather band
Water resistance	10-bar water resistance
Time adjustment	MULTIBAND 6 radio-controlled timekeeping: Japan, North America, Europe and China; Bluetooth: connects to a smartphone for automatic time adjustment
Power supply and battery life	Tough Solar (solar charging system)

Exterior details

Glass	Dual-curved sapphire crystal with anti-reflective coating on both sides
Surface treatment	Titanium-carbide treatment; Rose-gold ion plating on bezel
Compatible wrist size	160–200mm
Other features	Neobrite

Watch functions

Calendar	Full auto-calendar
Hand position correction	Automatic hand position correction
Power saving	Power saving: stops the hands after a period in the dark
Operating time	Operating time from a full charge without solar generation: approximately 5 months with normal function use, or 19 months in power-saving mode
Accuracy	Without radio reception or smartphone synchronization, the watch runs at normal quartz accuracy of ±15 seconds per month on average.
Other features	Date display
Time calibration details	Automatic radio reception up to six times daily (five for the Chinese signal) and manual reception. Signals: Japan JJY 40/60 kHz (Fukushima and Kyushu), North America WWVB 60 kHz, Europe MSF 60 kHz / DCF77 77.5 kHz, China BPC 68.5 kHz. The station is selected according to the configured home city or time difference. Supported home cities: Tokyo, Los Angeles, Denver, Chicago, New York, Halifax, London, Paris, Athens, Hong Kong. Japan uses JJY, North America WWVB, Europe MSF/DCF77 and China BPC.
Mobile Link	Bluetooth connectivity with a compatible smartphone
Compatible app	CASIO WATCHES
App functions	Automatic time adjustment; Easy watch settings; Time & Place; Watch status display; Phone finder; Premium Production Line production certificate