X - Casio Protrek ALT-7000 Alti-Thermo Twin Sensor Digital Rare Vintage - G-Shock Vintage
CASIO ALT-6100 M-le 950 WR 100m Japan Twin Sensor Alti Thermo Quartz Mens Watch | WatchCharts
Vtg Casio Men's 1405 Twin Sensor Alti-Thermo Pathfinder Watch Needs Battery for sale online | eBay
Casio 950 Alt 6100 stuck in auto measurement. Looking through online manual I can't figure how to switch to manual measurement mode. Any advice? Do I need to let the memory fill
Casio watch band ALT-6100.ALT-600 Pro Trek Alti-Thermo Twin Sensor. 20mm Long | eBay