CASIO · JAPANESE-MARKET REFERENCE

PRW-51Y-1JF

Name: PRW-51Y-1JF
Brand: CASIO
SKU: PRW-51Y-1JF
Price: 62276.0 JPY
Availability: OutOfStock

¥62,276 JPY

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CASIO PRW-51Y-1JF is a Japanese-market reference. The bio-based resin / stainless steel case and bezel are paired with a soft urethane band (bio-based resin). Tough Solar (solar charging system). Features include MULTIBAND radio-controlled timekeeping and world time. Listed water resistance: 10-bar water resistance.

Reference: PRW-51Y-1JF
Case (H × W × D): 51 × 47.4 × 14.5 mm
Weight: 55 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.

Buying from Japan Size & function guide

Setup & support

Model reference: PRW-51Y-1JF

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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.

Packaging & included items

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Product details

Model: PRW-51Y-1JF
JAN / EAN: 4549526343858
Intended use: Unisex wristwatch
Band material: Soft urethane band (bio-based resin)
Crystal material: Mineral glass
Weight: 55 g
Case size (L × W × H): 51 × 47.4 × 14.5 mm
Price: ¥62,276 JPY
Country of origin: JP

Specifications

Release date	January 2023
Japan MSRP	Japan MSRP: ¥59,400 (including Japanese tax)
Case size (H × W × D)	51 × 47.4 × 14.5 mm
Weight	55 g
Case and bezel material	Bio-based resin / stainless steel
Band	Soft urethane band (bio-based resin)
Water resistance	10-bar water resistance
Time adjustment	MULTIBAND 6 radio-controlled timekeeping: Japan, North America, Europe and China
Power supply and battery life	Tough Solar (solar charging system)
Sensors	Altimeter (relative altitude): −700 to 10,000 m; up to 30 manual records (date, time, altitude); automatic maximum / minimum altitude and cumulative ascent / descent records; altitude trend graph; altitude differential indicator (±100 m / ±1000 m); measurement interval of 5 seconds / 2 minutes, with 1-second measurements during the first 3 minutes. Barometer: 260–1,100 hPa; 20-hour pressure trend graph; pressure differential indicator (±10 hPa); pressure change alerts using arrows and sound. Compass: 16 directions, bearing angle (0–359°), 60-second continuous measurement, north indication, magnetic declination correction, bearing calibration. Thermometer: −10 to 60°C
Environmental resistance	Low-temperature resistance (−10°C)

Exterior details

Glass	Mineral glass
Crown	Screw-lock crown
Compatible wrist size	145–215mm
Other features	Neobrite
Surface treatment	Gray ion plating (bezel)

Watch functions

World time	World time: 29 cities (29 time zones, daylight saving on/off) plus UTC (Coordinated Universal Time); direct UTC access; home city / world time city swapping
Stopwatch	Stopwatch: 1/100 second, 24-hour capacity, split time
Timer	Countdown timer: 1-minute setting increments, maximum 60 minutes, 1-second measurement
Alarm	5 daily alarms and hourly time signal
Light	Double LED light:
LED light for the dial: full auto light, Neon Illuminator, afterglow, selectable illumination duration (1.5 seconds / 3 seconds);
LED backlight for the LCD: full auto light, afterglow, selectable illumination duration (1.5 seconds / 3 seconds)
Light color	LED: white; Neon Illuminator
Calendar	Full auto-calendar
Power saving	Power saving: turns off the display and stops the hands after a period in the dark
Battery indicator and alerts	Battery level indicator
Operating time	Operating time from a full charge without further solar charging
With normal functions in use: approximately 6 months
In power-saving mode: approximately 25 months
Accuracy	Without radio signal reception, the watch operates at normal quartz accuracy (±15 seconds per month).
Other features	12/24-hour format; hand shift (manual, or automatic during altitude, pressure and temperature measurements)
Button operation tone	Button operation tone on/off
Time calibration details	Home time cities (supported reception cities) / time calibration signals
Tokyo / Japan: JJY40 and JJY60
(Honolulu), (Anchorage), Los Angeles, Denver, Chicago, New York / United States: WWVB
London, Paris, Athens / United Kingdom: MSF; Germany: DCF77
Hong Kong / China: BPC
Cities in parentheses may receive signals under favorable conditions. Radio signal reception: automatic (up to 6 times a day, up to 5 for China) / manual
Japan: JJY, 40 kHz / 60 kHz (supports both Fukushima and Kyushu stations)
North America: WWVB, 60 kHz
Europe: MSF / DCF77, 60 kHz / 77.5 kHz
China: BPC, 68.5 kHz
When the home city supports reception, the watch receives the appropriate station for that city. The time difference is set according to the selected city.
Hand position correction	Automatic hand position correction
Sensor notes	The altimeter measures relative altitude by converting changes in air pressure. Weather-related pressure changes also change the altitude reading.
To measure air temperature, remove the watch from your wrist and avoid the effects of body heat, perspiration (water droplets), and direct sunlight.