This Casiotron S-15 is released way back in the 1976 when Casio first released their lineup of digital watches! Such a joy everytime I wear this watch! : r/casio
CASIO G-Shock GMW-B5000TVB-1 Titanium Men's Watch Made in Japan Limited | eBay
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