FEATURES

Altimeter
Use the PRO TREK's altimeter to help gauge the time you'll need to reach the summit!

Barometer
Predict changing weather patterns using the PRO TREK's barometer.

Compass
During measurement the watch displays an angle value, a direction indicator, and four direction pointers, which change dynamically when the watch is moved.
This new addition to the PRO TREK Multi-Field line comes with a highly readable STN LCD that enhances readability. A silicon band provides a better fit to the wrist and the large rotary bezel creates a design that is bold, even for a PRO TREK model.
- 200M Water Resistant
- Tough Solar Power
- Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)
- Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)
Receives time calibration radio signals which keep the displayed time accurate
Auto receive function (up to 6 times per day/up to 5 times per day for China)
Manual receive function
Signal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60, China BPC
Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz, BPC 68.5kHz - Tough Solar Power
- 200M Water Resistant
- Low Temperature Resistant (-10 C / 14 F)
- Altimeter
Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft)
Measuring unit: 1 m (5ft)
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. - Digital Compass
Measures and displays direction as one of 16 points
Measuring range: 0 to 359 degrees
Measuring unit: 1 degree
60 seconds continuous measurement
Graphic direction pointer
Bidirectional calibration and Northerly calibration function
Magnetic declination correction
Bearing memory - 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) - Thermometer
Display range: -10 to 60 C (14 to 140 F)
Display unit: 0.1 C (0.2 F) - Full Auto LED (Super Illuminator) Backlight with Afterglow
- World Time
31 time zones (48 cities + UTC), city name display, daylight saving on/off - Sunrise/Sunset Data
Sunrise time and sunset time for specific date/ daylight pointers - 5 Daily Alarms (4 one-time and 1 snooze alarm)
- Hourly Time Signal
- 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) - Full Auto Calendar (Pre-programmed until the year 2099)
12/24 Hour Formats
Button operation tone on/off
Accuracy: ± 15 seconds per month (with no signal calibration) - Storage Battery: Solar Rechargeable Battery Battery Level Indicator
- Module 3444
Power Saving Function
Approx. Battery Life: 7 months on full charge (without further exposure to light)
Size of case/total weight
PRW3500 56.9 x 53.4.0 x 14.5mm/89g
PRW3510Y 56.9 x 53.4 x 14.5mm/94g