Virtual Museum > Watches > LCD
The CASIO AT-551G is even more impressive than the TC-500 described in this page.
First of all, it's very elegant:
It doesn't look at all like a nerdy watch, with a gigantic keyboard, or switches everywhere.
But Where is the calculator? You have to press the Mode switch, and the calculator is displayed in the small LCD window:
And now, how do you enter the digits?
You simply have to DRAW them on the screen. Yes, it is a touch screen, AND a digitizer. And we are in 1984 Another incredible product from Casio. The PDA are still to be invented, and I am not talking smart watches, this will be coming 30 years later.
First of all, it's very elegant:
It doesn't look at all like a nerdy watch, with a gigantic keyboard, or switches everywhere.
But Where is the calculator? You have to press the Mode switch, and the calculator is displayed in the small LCD window:
And now, how do you enter the digits?
You simply have to DRAW them on the screen. Yes, it is a touch screen, AND a digitizer. And we are in 1984 Another incredible product from Casio. The PDA are still to be invented, and I am not talking smart watches, this will be coming 30 years later.
You simply draw the numbers, and draw the operation. Of course, you have the 4 basic operations.
It takes some time to get used to it, because it's recommended to draw the numbers in a certain way. The digitizer was one of the first and of course did not understand all the subtilities of manual writing. However I was able to draw all numbers and get them recognized in a few minutes.
This is really a milestone in the history of watches and if you are lucky enough to find one for sale (still working) don't hesitate. They are in short supply !!
Note that there were 3 different models of this watch made:
AT-550G : the first one in 1983
AT-551G : the one shown above
AT-552G : later model and most popular to find in auctions
Below is a small video to demo the watch and show the overall look. The video does not really show how beautiful this watch is....
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times since January 2019