Super Rare Casio F-15 Blue/Red model 1988, the brother to the white model, equally as rare, this is 1 of only two I've ever seen and is used but in great condition. :
CASIO G-SHOCK EXCELLENT #F15 | eBay
Oh hello...! My Casio watches F-78w and F-15 side by side like the original advert. : r/casio
CASIO VINTAGE COLLECTION(1988)F-15 MODULE 350 WATCH RARE NOS MADE IN JAPAN F UHR EUR 151,90 - PicClick FR
Casio F -14/15/15/16/18 anyone else got this line up to share!? : r/casio
Casio f16 | Mejores relojes, Reloj digital, Retro
Casio F-15 White model 1988 again a super rare Casio all original only ever seen 2 others for sale in the last 2 years, they command big money now! : r/ casio
Casio Classic - help identifying! | WatchUSeek Watch Forums