FEATURES

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

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

Compass
During measurement the watch displays an angle value, a direction indicator, and four direction pointers, which change dynamically when the watch is moved.
The PRG550-1A1 is a 3 hand analog watch model with an LCD window.The triple sensors measure compass bearing, altitude/atmospheric pressure and temperature.The multi-purpose second hand points towards magnetic north and can indicate the latest change in atmospheric pressure or show a change in altitude from a pre-selected location, depending on the function selected. While the LCD displays numerical sensor information such as compass direction angle value, altitude, atmospheric pressure, and temperature, the PRG550-1A1’s full auto LED light activates with just a flick of the wrist and operates by Casio’s Tough Solar Power technology, allowing readings to be accomplished with ease. Casio’s Tough Solar Power technology adds to the PRG550-1A1’s efficiency by allowing the timepiece to power down when not exposed to light for a certain period of time, thus conserving energy. Black resin band analog and digital watch with black face.
- Tough Solar Power
- 100M Water Resistant
- Low Temperature Resistant (-10°C/14°F)
- Tough Solar Power
- Digital Compass
Measures and displays direction as one of 16 points
Measuring range: 0 to 359 degrees
Measuring unit: 1 degree
20 seconds continuous measurement
Hand Indication of North
Bidirectional calibration and Northerly calibration function
Magnetic declination correction - Altimeter
Measuring range: -700 to 10,000m (-2,300 to 32,800ft)
Measuring unit: 5m (20ft)
Hand Indication of Altitude Differential
Altimeter Memory (manual measurements)
Memory capacity: 14 records
Measurement data: altitude, date, time
High / Low altitude memory
Cumulative ascent / descent memory
Reference altitude setting
Altitude tendency graph - 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 - Thermometer
Display range: -10 to 60 C (14 to 140 F)
Display unit: 0.1 C (0.2 F) - 100M Water Resistant
- Low Temperature Resistant (-10 C / 14 F)
- Full Auto LED Light with Afterglow
- Neo-brite Luminous Hands and Markers
- World Time
29 times zones (29 cities + UTC), city code display, daylight saving on/off - 5 Daily Alarms
- Hourly Time Signal
- 1/100 second stopwatch
Measuring capacity: 59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times - Countdown Timer
Measuring unit: 1 second
Countdown start time setting range: 1 minute to 60 minutes (1-minute increments) - Full Auto Calendar (pre-programmed until the year 2099)
- 12/24 Hour Formats
- Button operation tone on/off
- Accuracy: +/- 15 seconds per month
- Battery Power Indicator
- Power Saving Function
- Storage Battery: Solar Rechargeable Battery
- Approx. battery life: 6 months on full charge (without further exposure to light)
- Module 5213
Size of case/total weight
PRG550 56.8 x 49.3 x 14.2mm / 79.6g
PRG550B 56.8 x 49.3 x 14.2mm / 79.6g