And although it's a strange product — it has none of the modern smart watch features you're probably familiar with — it took a lot of clever engineering to get here. The Casio CRW001-1 is made ...

It's widely regarded as one of the best digital watches of all time ... Now, it has a stablemate called the Casio G-Shock MR-G2100D. In essence, there's not a lot of change here.