I bought a bunch of Casio from a recycling company. Under them was this vintage DW-9000 (in near mint condition). New battery and it's runs flawlessly. I paid 40€ for 11 watches,
Very Rare Mint CASIO DW 9000 1627 Early G Shock G Lide Diving Watch Brand New 1990s Transparent Watch Clear G Shock - Etsy Israel