Casio f-91w-1yer digital watch-sport-replacement strap watch-f-91w-1cr | eBay
Casio Unisex Digital Watch F-91W Series Resin Band Casual Watch (1 Year Warranty) | Shopee Malaysia
Casio F-91W purchased Mar-2016. Wristband was rubbish and broke in 1 year, replaced with nato style nylon band. Has been bashed against concrete, submerged in river. Will update in another 4 years