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
CASIO TS-1200 - SENSOR FIX - YouTube
Need help, no sound on 1983 CASIO TS-1200 | WatchUSeek Watch Forums
Casio 515 TS-1200 Thermo 38 years strong! : r/casio
CASIO [515] TS-1200 Japan RT Digital Watch Water Resist 100m Thermometer | WatchCharts
VINTAGE ORIGINAL CASIO WATCH BAND TS-1000 AND TS-1200 NOS REPLACEMENT | eBay