Casio BM100 - 1989 - It was the first watch to have a triple sensor inside capable of measuring pressure, altitude and depth. Definitely cool 😎 : r/ casio
Casio BM 100WJ Vintage Japan Altimeter Barometer Deep Meter | eBay
Casio BM100, Men's Fashion, Watches & Accessories, Watches on Carousell
Casio Digital Watch BM-100W-1V Vintage VERY RARE FULLY WORKING! UNWORN 2023 | eBay
Denny Osmansyah on Instagram: "FS : Vintage Casio BM 100 WJ Digital Barometer Japan - Very Rare . Used . Original . Beep on . Light on . Sensor Ok . LCD