Casio one of the greatest watch brand

Casio is one of the most, or the most, important digital watch brand. The company was founded on the 1946 but the main business were the electronic calculators. The first LCD watch was released on November 1974, the Casiotron (picture from Casio web site).
From this point, Casio released a lot of different watches. From the calculator watches early 80s, to the sensor watches early 90s, but also, remote control watch, radio controlled watch, solar watch, GPS watch, radio receiver and radio emitter watches, etc. It is summarized in Casios web site.
The G series started on 1993 with the DW-5000C-1A and nowadays is maybe the best known kind of Casio watches.
The F91w is the watch we all have or had. The watch that suffered the the childhood of millions of us.Today's a trendy watch that could be bought for less than 20 bucks! (Picture from Casios web site).