Casio TS-1000 | Liquid Crystal,First wristwatch with a built-in thermometer The TS-1000 could tell the temperature, another first for a wristwatch. It employed a fine ceramic semiconductor called a thermistor to sense changes in temperature. The,USED CASIO (215) TS-1000 THERMOMETER DIGITAL 100M WATCH FOR PARTS & REPAIRS | eBay,CASIO TS-1000 THERMOMETER DIGITAL WATCH RARE VINTAGE 1982 NEVER WORN | WatchCharts Marketplace,RARE Vintage 1982 Casio TS-1000 Digital Thermometer Watch Made in Japan Mod. 215 | WatchCharts,