Here’s an old G-Shock catalog that I got hold of recently. I can’t find the year printed anywhere on it but I believe this catalog is from anywhere between 1996-1998. The address found on its back cover indicates that it is a US catalog.
Below is the table of contents. I shall skip page 18 and beyond since those are Baby-G pages. Let’s take a look at the G-Shock models on page 1 to 17.