F-91W? Way too high tech. The F-28W is simpler, cheaper and my favorite Casio. Sadly, they don't produce it anymore. : r/casio
CASIO] 4 continents, 1 Volcano, 2 straps. Now 7 years old my CASIO F-91W is the best purchase I've ever made and hasn't required a battery change yet. : r/Watches
Classic Casio F28W Made In Malaysia, Men's Fashion, Watches & Accessories, Watches on Carousell
Vintage RARE Casio F-28w (1156) Retro Watch Runs Battery Kca5 for sale online | eBay
CASIO F28W-1 Casual Digital Watch with Black Resin Band (Discontinued by Manufacturer)
Zona Casio: Prueba: Casio F-28W, el pequeño gran olvidado