Vintage Casio Pro Trek PRT-70 Twin Sensor (Alti-Thermo) – Very good condition

A true vintage outdoor watch from the golden era of Casio Pro Trek – robust, functional and full of character.

For sale is a Casio Pro Trek PRT-70 Twin Sensor (Alti-Thermo), a classic model from the early generation of Pro Trek outdoor watches.

The PRT-70 is far more than just an old digital watch. It comes from an era when Casio combined innovative outdoor technology with exceptional watch design – long before smartwatches existed.

Its distinctive analogue/digital display, Twin Sensor technology and robust construction give it a character that modern watches rarely offer.

The watch is in very good condition for its age. There are only minor signs of use, such as fine scratches on the case and bezel (see photos). All functions work perfectly. The original black resin strap is intact and securely attached.

Features
⛰️ Altimeter
🌡️ Thermometer
🧭 Twin Sensor technology
🔄 Analogue/digital display
🧭 Compass bezel
💧 10 BAR water resistance
🇯🇵 Japan M Movement
⚙️ Reliable quartz movement
🖤 Original black resin strap
🔢 Module 2307
Why is it special?

Pro Trek, before everything became a smartwatch.

No apps. No notifications. No charging cable. No touchscreen.

Just a robust watch, real sensors and an unmistakable design.

The combination of analogue hands, digital display and Twin Sensor system makes the PRT-70 a distinctive piece of Casio’s technical history.

Ideal for Casio Pro Trek collectors, vintage watch enthusiasts, fans of Japanese technology from the 1990s/2000s and outdoor enthusiasts.

A true vintage Pro Trek with outdoor character – built to be used and now a sought-after piece of vintage technology.

Please refer to the high-resolution photos for the exact condition.

Sold as pictured.