Is it additional links you're looking for? Maybe try asking at a Swatch store if you have one nearby!
A few years ago I bought an older Swatch (maybe released 10 years earlier, so we're not quite talking 90s) on the Internet that showed up in great condition but with the band sized too small and no extra links. The price was great, maybe 1/3 what other examples were going for, so I wanted to avoid returning it if possible.
I took it to a Swatch store, said I'd just received it as a gift, and they pulled out a massive binder loaded with miscellaneous parts. They found the exact links for my band, installed one or two of them for me, polished the watch, apologized for the links not looking completely new… and wouldn't even let me pay for anything. It was kind of shocking, actually.