Vintage Casio Twin Sensor Alti-Thermo Watch - ALT-6000 Module 960 - Made Japan | WatchCharts
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