Casio has announced the latest additions to its OCEANUS line of watches, which are designed to capture the essence of “Elegance and Technology.” The new OCEANUS Manta is the thinnest-ever OCEANUS and features an aesthetically delightful, sophisticated profile.

Two models are available, the limited edition OCW-S5000S with just 200 watches, and the OCW-S5000E. Both the OCW-S5000S and OCW-S5000E are thinner than any previous OCEANUS watches.

CASIO achieved the slim design by reducing the thickness and size of the components, shaving size in increments as small as 1/100th of a millimetre, and by using high-density mounting to place all the components on one side of the circuit board rather than on both sides as in previous models. The result is a thin profile just 9.4 mm deep, 2.3 mm thinner than the existing model.

The bezel on the new watches is multi-dimensionally cut to show 16 facets, yielding a distinctive design worthy of an OCEANUS. The watches also sport a sophisticated, new profile which, in silhouette, reveals curving lines flowing from the case to the band.

CASIO OCEANUS OCW-S5000S — OCEANUS 15th Anniversary Model

This special model boasts inset dials crafted of mother-of-pearl, finished in blue while still preserving its natural texture. It also employs a sapphire crystal outer ring on the dial, cut to show 24 facets and treated with a vapour deposition finish in a gradation from blue to light blue.

CASIO OCEANUS OCW-S5000S — OCEANUS 15th Anniversary Model

The dial also has a vapour deposition finish that enhances both colour and texture, elegantly presenting the blue brand colour. The titanium case and band feature a new Blue-AIP® (Arc Ion Plating) treatment that offers enhanced wear resistance. The watch is a limited edition of 200 pieces worldwide.


The OCW-S5000E features a deep black bezel treated with a diamond-like carbon (DLC) finish that increases hardness. The inset dials have a vapour deposition finish in the blue brand colour.


The outer ring on each inset dial is finished in a brilliant new colour using sputtering technology to accentuate the sophisticated look of the watch.

The new OCEANUS models receive radio wave time-calibration signals, and they also connect to a smartphone via Bluetooth®, to ensure accurate time. When paired with a smartphone, the user can easily and intuitively set the world time to any of over 300 cities. The watches also automatically switch between time zones and adjust for daylight savings time.

Technical details

Models: OCW-S5000S and S5000E

Size of Case: 48.8 × 42.3 × 9.4 mm
Water Resistance: 10 bar

Radio Frequency
77.5 kHz (DCF77: Germany); 60 kHz (MSF: UK); 60 kHz (WWVB: USA); 40 kHz (JJY: Fukushima, Japan) / 60 kHz (JJY: Kyushu, Japan); 68.5 kHz (BPC: China)

Radio Wave Reception
Automatic reception up to six times a day (except for use in China: up to five times a day)

Standard: Bluetooth® low energy
Signal Range: Up to 2m (may differ depending on surrounding conditions)

1 second; measuring capacity: 23:59’59; measuring modes: elapsed time

Other Features
Smartphone Link functions (world time: over 300 cities, automatic time adjustment, easy watch setting), Phone Finder, automatic hand correction (hour, minute and second hand), day and date display, full auto-calendar, battery level indicator, world time (27 cities, Coordinated Universal Time, 38 time zones, home time swapping)

Power Source
Tough Solar power system (solar-charging system)

Continuous Operation
About 18 months with the power-saving function ON after full charge

Total Weight
Approx. 82g