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Dick Tracy's 2-way TV watch
The world's fascination with the gadget watch began in the 1930's, with the introduction of the comic book character Dick Tracy.
Tracy was a hard-hitting police detective, outfitted in bright yellow garb and carried among other things, a Two-way wrist communicator that over time also included video capability.
Pulsar Calculator Watch (1972)
Hamilton Pulsar was a luxury watch manufacturer that was known for its pioneering work in creating the world's first truly digital timepiece in 1970, and was featured in the James Bond movie "Live and Let Die". In 1975 the company introduced the first fully functional calculator watch.
Casio Databank (1980s-current)
In the 1980s, Japanese timepeice manufacturer CASIO introduced the Databank, a LCD watch line that continues to be manufactured to this day. Databanks have had many configurations over the years, including calculator watches, but primarily they have been used for limited PDA-type of functions (Appointments, Contact, Calendar) that we see as common features in today's smartphones.