PRW-30Y-1B

LED:White

The colors may differ slightly from the original.

PRW-30Y-1B

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Silicon band

100-meter water resistance

The "BAR" value indicates the number of atmospheres to which water resistance is ensured. 10 BAR means water resistance to 10 atmospheres. Watches marked "100m" have the same water resistance as 10 BAR watches.

Tough Solar

CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power.

Radio-controlled Watch; Multi band 6

This watch receives time calibration radio signals that keep the displayed time accurate.

Color Variations

Features

With the PRW-30, an array of large metal buttons on the right provide one-touch access to compass, barometric pressure/altitude, and temperature readings that appear on the LCD.
Icons on the face glass next to each of the buttons contribute to easy-to-understand, intuitive access to the information you need even when facing a severe outdoor environment.
The digital LCD uses a high-contrast bold font, which, in combination with an STN LCD, ensures improved visibility even under harsh sunlight.
Other functions include Tough Solar, time calibration signal reception, and 100-meter water resistance, all of which help to ensure you get the timekeeping performance you need under virtually any conditions imaginable.
In addition to all of this, these models boast smaller cases and a thinner looking bezel. These watches are designed so they do not interfere with wrist movement while engaging in mountain climbing, camping, and other outdoor activities. These models come with DURA-SOFT bands that incorporate silicon materials to improve durability.
The fit of these watches has been improved to support comfort during longer mountain climbing and other outdoor sessions.
The PRW-30Y-1BDR model features an ion plated (IP) bezel and a light-on-dark LCD, all in an overall basic black design.

Triple Sensor (bearing, altitude/barometric pressure, temperature)

MULTIBAND 6 (Automatically adjusts time settings based on reception of one of six time calibration signals around the globe: Japan (2), China, United States, England, Germany.)

Tough Solar

Barometric pressure graph

Barometric pressure alarm

Low-temperature resistance (–10°C/14°F)

Slide lever band

More Information

PRW-30 Special page

Specifications

- Case / bezel material: Resin / Stainless steel
- Silicon band
- Mineral Glass
- Gray ion plated bezel
- 100-meter water resistance
- LED backlight (Super Illuminator)
  Full auto LED light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
- Tough Solar (Solar powered)
- Low-temperature resistant (–10°C/14°F)
- Time calibration signal reception
  Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
  Manual receive
  The latest signal reception results
  *5 times a day for the Chinese calibration signal
- Time Calibration Signals
  Station name: DCF77 (Mainflingen, Germany)
  Frequency: 77.5 kHz
  Station name: MSF (Anthorn, England)
  Frequency: 60.0 kHz
  Station name: WWVB (Fort Collins, United States)
  Frequency: 60.0 kHz
  Station name: JJY (Fukushima, Fukuoka/Saga, Japan)
  Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
  Station name: BPC (Shangqiu City, Henan Province, China)
  Frequency: 68.5 kHz
- Digital compass
  Measures and displays direction as one of 16 points
  Measuring range: 0 to 359°
  Measuring unit: 1°
  60 seconds continuous measurement
  Graphic direction pointer
  Bidirectional calibration
  Magnetic declination correction
  Bearing memory
- Altimeter
  Measuring range: –700 to 10,000 m (–2,300 to 32,800 ft.)
  Measuring unit: 1 m (5 ft.)
  Manual memory measurements (up to 30 records, each including altitude, date, time)
  Auto log data (High/low altitudes, auto cumulative ascent and descent)
  Trek log data (up to 14 records of high/low altitudes, auto cumulative ascent and descent of particular treks)
  Others: Relative altitude readings (–3,000 to 3,000 m)
  Selectable measurement interval: 5 seconds or 2 minutes
  *1 second for first 3 minutes only
  *Changeover between meters (m) and feet (ft)
- Barometer
  Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
  Display unit: 1 hPa (0.05 inHg)
  Atmospheric pressure tendency graph (Past 42 hours of readings)
  Atmospheric pressure differential graphic
  Barometric pressure tendency information alarm (beep and arrow indicate significant changes in pressure)
  *Changeover between hPa and inHg
- Thermometer
  Display range: –10 to 60°C (14 to 140°F)
  Display unit: 0.1°C (0.2°F)
  *Changeover between Celsius (°C) and Fahrenheit (°F)
- World time
  31 time zones (48 cities + Coordinated Universal Time), daylight saving on/off, Home city/World time city swapping
- Sunrise, sunset time display
  Sunrise time and sunset time for specific date, Daylight pointers
- 1/10-second stopwatch
  Measuring capacity: 999:59'59.9"
  Measuring modes: Elapsed time, split time, 1st-2nd place times
- Countdown timer
  Measuring unit: 1 second
  Countdown range: 24 hours
  Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
- 5 daily alarms (with 1 snooze alarm)
- Hourly time signal
- Battery level indicator
- Power Saving (display goes blank to save power when he watch is left in the dark)
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Regular timekeeping: Hour, minute, second, pm, year, month, date, day
- Accuracy: ±15 seconds per month (with no signal calibration)
- Approx. battery operating time:
  6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
  22 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)