I finished restoring my 1986 DW-3000 "The Tank" is now has a 690 module with more functions, new gaskets and a vintage looking leather strap. What du you think? : r/casio
Vintage Casio Dw-3000 Digital Watch Water Resist 300m Stopwatch for sale online | eBay
Vintage Casio DW-3000 Module 548 Works Fine Japan Made Mens Watch 300M | eBay
Rare 80s CASIO DW-3000 Digital Watch 300m, 548 LCD Spare/repair. Aka (the Tank) | WatchCharts
Vintage Casio Dw-3000 Digital Watch Water Resist 300m Stopwatch for sale online | eBay