New Original CASIO PRO-TREK Replacement Watch Strap SGW-300H SGW-400H BLACK | eBay
Never get lost with a Casio SGW-300H | WatchGecko
Picked this SGW-300H up for peanuts on Ebay. If it had 200m water resistance it would be the best watch money can buy outside of a dedicated Protrek or G-Shock! : r/casio