![Amazon.com: Casio Men's Pro Trek PRG-270-1 Tough Solar Triple Sensor Multifunction Digital Sport Watch : Clothing, Shoes & Jewelry Amazon.com: Casio Men's Pro Trek PRG-270-1 Tough Solar Triple Sensor Multifunction Digital Sport Watch : Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/61JHws6pxQL._AC_UY1000_.jpg)
Amazon.com: Casio Men's Pro Trek PRG-270-1 Tough Solar Triple Sensor Multifunction Digital Sport Watch : Clothing, Shoes & Jewelry
![Amazon.com: Casio Men's Pro Trek PRG-270-1 Tough Solar Triple Sensor Multifunction Digital Sport Watch : Clothing, Shoes & Jewelry Amazon.com: Casio Men's Pro Trek PRG-270-1 Tough Solar Triple Sensor Multifunction Digital Sport Watch : Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/81TvLj2c2IL._AC_UY1000_.jpg)
Amazon.com: Casio Men's Pro Trek PRG-270-1 Tough Solar Triple Sensor Multifunction Digital Sport Watch : Clothing, Shoes & Jewelry
![Shaun Cuff på Twitter: "This weekend's #VintageWatch is a #Casio ALT-6000 Alti-Thermo. Launched in 1992 this was Casio's first twin sensor watch. Along with the ATC-1000, they were forerunners to Casio's #Protrek Shaun Cuff på Twitter: "This weekend's #VintageWatch is a #Casio ALT-6000 Alti-Thermo. Launched in 1992 this was Casio's first twin sensor watch. Along with the ATC-1000, they were forerunners to Casio's #Protrek](https://pbs.twimg.com/media/EuqN1cXXcAMK4Ak.jpg)