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
Casio F -14/15/15/16/18 anyone else got this line up to share!? : r/casio