ULTRA RARE VINTAGE CASIO 643 W-50U MEN'S DIGITAL WATCH 1980s WORLD TIME ZONE | WatchCharts
Vintage Casio W-50U 643 Mens Digital Watch | eBay
Casio W-50U World Time Watch - Module 643 - 1986 Vintage Retro GOOD CONDITIOn | #1690354013
Casio] My A500WA-1 that I've had for over a year now and my father's old W-50U (sadly the upper spring bar broke off around 20 years ago and damaged the watch case) :
Rare Casio World Time W-50U Watch Module 643 new battery spares repair read | WatchCharts