Casio Protrek - PRW-61-1A
Feature
The PRO TREK brand stands for experiencing, enjoying, and preserving the wonders of nature. The PRW61 uses eco-friendly biomass plastics in the case, band, and case back. For the first time in a PRO TREK or any Casio watch, the case and band are made from eco-friendly biomass plastics instead of conventional resins. The use of biomass plastics also delivers uncompromising resistance to hard use as well as comfort on the wrist. We are proud of this new material application for our line of premiere outdoor tools, PRO TREK. For optimal wear resistance and an airtight seal, the case back is made from high-strength engineered plastics made from biomass materials. The case back has a wider flat surface, as well, for better torsional resistance. Dial contrast has been enhanced by using vivid white for the large bar indexes and hour and the minute hands, delivering optimum visibility in the field. The stainless steel bezel is engraved with city codes for an outdoor gear look. As the original function of the watch, it also has functions such as multi-band 6 and tough solar. It is a model packed with high functionality and practicality that correspond to various scenes in just size.
Specifications
Case / bezel material: Resin / Stainless steel
Resin Band
100-meter water resistance
Low-temperature resistant (-10℃/14℉)
Tough Solar (Solar powered)
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 (℉)
Mineral Glass
Screw Lock Crown
Neobrite
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
1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)
5 daily alarms Hourly time signal
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)
LED:White
Button operation tone on/off
The auto hand home position correction
Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
Battery level indicator
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: ±15 seconds per month (with no signal calibration)
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 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
Case size (L× W× H) 54.2 × 47.4 × 14.7 mm
Weight 53 g
