Casio ProTrek PRG-650 Series

Representative of the latest generation of ProTrek for travel. The external feature of the model can be called a concise and compact design – the case has become much thinner, and the placement of elements on the display has become more rational and convenient. Ana-DJ dial not only adds a bit of “classic” to the watch, but also visually separates the digital functionality from the analogue. The case is resistant to low temperatures – the manufacturer guarantees stable operation of the watch at temperatures up to -20 ° C. The watch has a triple sensor for measuring atmospheric pressure, air temperature and directions relative to magnetic north. Dual illumination Neon Illuminator illuminates not only analog but also digital zones. The strap is made of soft but durable silicone, with a luminescent coating – will glow in the dark. For quick access to watch functions, the Smart Access crown is provided.

Important Information

  • Price — 470$ *average Amazon Price, we may earn commission from purchases
  • Year of first Release —  2017
  • Module Number — 5545
  • Model Range — SOLAR
  • Other Divisions the PRG-650 belongs to: *you may find all watches of the division by clicking on the link
  • Battery Type — Solar (ProTrek Batteries)

PRG-650 Model Range *may be updated

Official Marketing Focus from Casio

Introducing new night safari concept models for the lineup of Triple Sensor Version 3 PRO TREK models.
The colors and designs of these three new models all were specially selected for the night time outdoor scene.
The outside of the bands and the faces of all three models are black. The designs of these models are stylish and subdued, without sacrificing the readability required during night time activities.
The PRG-650/650Y models come with DURA-SOFT bands that incorporate silicon materials that improve durability. The inside of the band is luminescent, so it emits a faint glow during night activities.
Function-wise, all three models are equipped with Neon Illuminator to provide easy reading of the time and function modes, even in the dark. Other basic functions include Triple Sensor (bearing, altitude/barometric pressure, temperature), one-touch measurement button, Tough Solar, and more. Movable lug components add to a better fit and more comfort.
Everything about these models is designed and engineered to create functions and designs for night time outdoor activities.

Official PRG-650 Specs / Features *for base version PRG-650-1

  • Case / bezel material: Resin / Stainless steel
  • Silicon band
  • Mineral Glass
  • Neobrite
  • Screw Lock Crown
  • 100-meter water resistance
  • Double LED light
    LED light for the face (Full auto LED light, Neon illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
    LED backlight for the digital display (Full auto LED light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
  • Solar powered
  • Low-temperature resistant (–10°C/14°F)
  • The auto hand home position correction
  • 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 (±100 m /±1000 m), 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°C (14 to 140°F)
    Display unit: 0.1°C (0.2°F)
    *Changeover between Celsius (°C) and Fahrenheit (°F)
  • 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 second to 60 minutes (1-second increments, 1-minute increments)
  • 5 daily alarms
  • Hourly time signal
  • Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement))
  • Battery level indicator
  • Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Button operation tone on/off
  • Regular timekeeping:
    Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
    Digital: Hour, minute, second, am/pm, month, date, day
  • Accuracy: ±15 seconds per month
  • Approx. battery operating time:
    7 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)
  • Size of case : 51.6×51.5×13.4mm
  • Total weight : 80g

Recent News about PRG-650 

All Casio PRG-650 News →


You ask, we answer…

What does Tough Solar in PRG-650 mean?

CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power.

What is Altimeter in PRG-650?

It’s the electronic mechanism that “estimates” the altitude based on the air pressure.

How does Digital compass in PRG-650 work?

It measures and displays direction as one of 16 points.

What does Barometer in PRG-650 do?

It measures the air pressures and displays tendencies in the weather.

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