RARE Vintage 1984 Casio TS-1200 Digital Thermometer Watch Made in Japan Mod. 515 | WatchCharts
Casio 515 TS-1200 | WatchUSeek Watch Forums
Casio TS-1200 module 515 | #511749223
Casio TS-1200, c. 1984. a "watersports" watch. My only real Japanese made watch. any ideas on how to get that thermometer working again? : r/JapaneseWatches