At a glance

Small is beautiful! The Pro-Trek PRG-330 packs Casio's classic Triple Sensor technology into a compact user friendly design. Powered by light, reliable operation of the digital compass, thermometer and barometer is assured. Ideal for life in the great outdoors.



12/24 Hour Format

Times can be displayed in either a 12-Hour or 24 Hour Format.


+/- 15 seconds per month

Alarm Function

Daily Alarm: sounds each day at the time you set


Measuring range: -700 m to 10,000 m (-2,300 ft to 32,800 ft.); measuring unit: 1 m (5 ft.); manual memory measurements (up to 30 records, each including altitude, date, time);

Altimeter Data Memory

Depending on the model, up to 40 sets of elevation data can be stored in the watch's data memory and re-accessed at any time. Each of these data sets consists of a measured altitude as well as the dat

Auto LED (Super Illuminator) Backlight

With Afterglow; Selectable illumination duration (1.5 seconds or 3 seconds)

Band Material



Measuring range: 260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg); measuring unit: 1 hPa (0.05 inHg); atmospheric pressure change indicator (±10 hPa); barometric pressure tendency graph (past 20 hours g

Battery Level Indicator

An indicator shows the current battery charge level.

Button Tones On/Off

tone on/off and mute

Case/Bezel Material


Countdown Timer

Countdown range: 24 hours

Digital Compass

A built-in direction sensor detects magnetic north displaying both this and your current direction on the watch face.

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


(H x W x D)

56 x 47 x 12.6mm

Height Gain

The height gain sums all the metres you have climbed in a session, so that you can see at a glance the total ascent on a tour.

Low Temperature Resistant

The timekeeping module is designed for operation at very low temperatures, typically -10°C/ 14°F

Mineral Glass

Hard glass resists scratching

Regular timekeeping

Hour, minute, second, pm, month, date, day

Solar Power

A Solar cell provides power for operation, meaning you never need to change a battery


Elapsed time, split time and final time are measured with 1/10-sec accuracy. The watch can measure times of up to 1000 hours

Sunrise/Sunset Display

Sunrise and Sunset times are displayed for your chosen location. Ideal for planning outdoor activities.


Measuring range: -10°C to 60°C (14°F to 140°F); measuring unit: 0.1°C (0.2°F)

A sensor measures the ambient temperature around the watch and displays it in °C (-10°C /+60°C)

Total weight

57 g

Triple Sensor

Alitmeter/Barometer,Thermometer, Compass

Water Resistant

100 Metre/10 Bar

World Time

Displays the current time in major cities and specific areas around the world.

31 time zones (48 cities + coordinated universal time)


Related Links

Support Information