I bought this Casio A156W a couple of minutes ago and long story short, this is the exact same watch that my eldest cousin had before he left the family. He was
RARE VINTAGE JAPAN MEN'S CASIO A156W ALARM CHRONOGRAPH DIGITAL WRISTWATCH | eBay
Casio A156W Module 590 Watch - Etsy Australia
Casio A156W Module 596 Japan 1980's Collectible Authentic Band Lithium Vintage | WatchCharts