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
Power Saving Function
Approx. Battery Life: 7 months on full charge (without further exposure to light)
• Module 3444

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