[Mattia] decided that a spare key card might be good to have around, and that building it into his Casio F-91W watch would put the key as close at hand as it could be without getting an implant.

[Matteo] has been a fan of the Casio F-91W wristwatch virtually since its release in 1989. And not without good reason, either. The watch boasts reliable timekeeping and extremely long battery ...

Take 1984’s Casio Data Bank CD-40, a digital watch, one of the earliest to include a databank for storing contacts, phone numbers and information. Or 1989’s Casio F-91W, renowned for its reliability, ...