u/E_PERRINA

For my 10th birthday 21 years ago my grandfather took me to a Watch shop and told me to take the one i liked the most and i chose this Casio jg-10 infraceptor. Today i find It in a old box and looking online i've found out it's very rare and have some value. I'm not sure if selling It or not because of sentimential value but i'm curious about the value, any tip or advice?