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,
2 Casio G-shock DW-9000 (Jelly and Triple Crown of Surfing) - myWatchMart
G Shock G-Lide DW9000 Classic Casio DW 9000 GLide Retro Vintage, Men's Fashion, Watches & Accessories, Watches on Carousell
Casio G-Shock DW-9000 G-Lide series green Surftimer | Shopee Malaysia