Features
Celebrate 50 years of Casio watches with a transcendent PRO TREK that symbolizes Casio’s determination to stay true to who we are, while constantly innovating. The PRO TREK PRW-61SS features a special commemorative color scheme and design with Casio colors, materials, and finishes that evoke the omnipresent yet ever-changing nature of the sky, the sea, and the sunlight — shining today and forevermore. The design features a dial ring laser-etched with a fluted pattern. The logo is engraved on the case back, paying homage to the first-ever Casiotron released back in 1974. This very special 50th anniversary-worthy PRO TREK embodies both the origin of Casio watches and the half-century of groundbreaking innovation that followed.
Basic Information
Case size (L× W× H)
51 × 47.4 × 14.7 mm
Weight
56 g
Case and bezel material
Resin / Stainless steel / Resin (Bio-based)
Band
Cloth Band
Water resistance
100-meter water resistance
Environmental resistance
Low-temperature resistant (-10℃/14℉)
Time adjustment
Radio-controlled Watch; Multi band 6
Power supply and battery life
Tough Solar (Solar powered)
Sensor feature
Digital compass
Measures and displays direction as one of 16 points
Measuring range: 0 to 359°
Measuring unit: 1°
60 seconds continuous measurement
Hand indication of north
Bidirectional calibration
Magnetic declination correction
Altimeter
Measuring range: -700 to 10,000 m ( -2,300 to 32,800 ft.)
Measuring unit: 1 m (5 ft.)
Hand indication of altitude differential
Manual memory measurements (up to 30 records, each including altitude, date, time)
Auto log data (High/low altitudes, cumulative ascent and descent)
Others: Relative altitude readings (±100m /±1000m),
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)
Hand indication of pressure differential
Atmospheric pressure tendency graph
Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
*Changeover between hPa and inHg
Thermometer
Display range: -10 to 60℃ (14 to 140℉)
Display unit: 0.1℃ (0.2℉)
*Changeover between Celsius (℃) and Fahrenheit (℉)
Exterior
Glass
Mineral Glass
Crown
Screw Lock Crown
Surface treatment
Blue ion plated bezel
Compatible band size
145 to 215 mm
Other
Neobrite
Watch Features
World time
World time: 29 time zones (29 cities + coordinated universal time), One-touch UTC Time Zone Access, daylight saving on/off, Home city/World time city swapping
Stopwatch
1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer
Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)
Alarm/hourly time signal
5 daily alarms
Hourly time signal
Light
Double LED light
LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
Light color
LED:White
Calendar
Full auto-calendar (to year 2099)
Mute feature
Button operation tone on/off
Hand home position correction feature
The auto hand home position correction
Energy saving feature
Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
Battery display/alert
Battery level indicator
Run time
Approx. battery operating time:
6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
25 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy
Accuracy: ±15 seconds per month (with no signal calibration)
Other features
12/24-hour format
Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement))
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
Digital: Hour, minute, second, am/pm, month, date, day
Time adjustment details: (Not available in New Zealand)
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
Time calibration signal reception
Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
*5 times a day for the Chinese calibration signal
Manual receive
The latest signal reception results
