Shaun Cuff on Twitter: "Just fitted new batteries to my Casio ATC-1000. This particular model is 25 years old and was Casio's first triple sensor watch (digital compass, altimeter and thermometer). #WearableTech #
The very first Protrek watch reviewed. | WatchUSeek Watch Forums
VTG Casio Pro-Trek ATC-1100 Triple Sensor Digital Mens Watch Rare PARTS REPAIR | eBay
Iron Hawk on Twitter: "CASIO PROTREK Pathfinder ATC-1000-N1V #Timepiece #wristwatch #watchuseek #watches #watchcollector #watchhobby #casiouk #Protrek_usa https://t.co/hvdoJJQ3GS" / Twitter