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
Back from the grave: Casio BM-100WJ (long post) | WatchUSeek Watch Forums
Casio BM-100 : r/casio
Denny Osmansyah on Instagram: "FS : Vintage Casio BM 100 WJ Digital Barometer Japan - Very Rare . Used . Original . Beep on . Light on . Sensor Ok . LCD
Vintage Casio Digital Watch BM-100W Barometer Digital Watch / - Etsy Norway
Casio BM-100WJ VERY RARE EBAY - YouTube
Clean+Vintage+1989+Casio+Bm-100w+Digital+Barometer+Watch+Made+in+Japan+Mod+510 for sale online | eBay
Vintage Casio Digital Watch BM-100W Barometer Digital Watch / - Etsy Finland
CASIO DIGITAL BAROMETER, BM-100WJ - YouTube
Casio Protrek for $290 for sale from a Private Seller on Chrono24
vintage casio bm-100wj altimeter barometer depthmeter lcd watch japan from 1989 | eBay