Casio throwback calculator watches

[gentzel]

Man, this brings back memories!

Casio's new calculator watches will take you back to 6th grade math class

[dm319]

They look pretty nice. I was just thinking I might want to start wearing a watch again. Not a smart one. But this one isn't exactly dumb! I'm curious what architecture they will be using and whether it will have 17digits+ of precision of their latest range of calculators.

[Dave Britten]

Bring back the DBC-150, damn it!

[AnnoyedOne]

In the mid 1980's I owned a Casio CA-50x (all metal) calculator watch with metric conversions. I bought it cheap at a market in Genoa, Italy. However it died and is long gone. These days they're considered "rare" and sell for a lot on eBay.

Some years ago I purchased one of these out of nostalgia.

https://www.casio.com/us/watches/casio/p...CA-53WF-3B

It is sitting in front of me

A1

[Ren]

In the early 1980s, one friend of mine had one of those Casio watches that played tunes.
(Such as on a birthday, it would play "Happy Birthday" on the hour.)
A mutual friend got tired of listening to it, and cooked it in a microwave oven!
He then replaced our friend's watch with a Casio Calculator watch.

Ren
dona nobis pacem

[AnnoyedOne]

(11-17-2024 11:51 AM)dm319 Wrote:  I'm curious what architecture they will be using and whether it will have 17digits+ of precision of their latest range of calculators.

The Casio calculator watches I've seen a basic 4-bangers. No memory or sqrt(). 8-digit. No scientific notation.

Only useful (IMO) if you're out shopping/traveling etc. and you want to perform basic arithmetic.

With the exception of metric conversions the one I have now has the same functionality as the stainless steel one I had in 1985.

A1

PS: I rarely wear a watch these days.

PPS: I had to look up the exact model number of my 1985 one. A rare (to find working) CM-321 as pictured below.

[Maximilian Hohmann]

Hello!

(11-20-2024 01:34 PM)AnnoyedOne Wrote:  PS: I rarely wear a watch these days.

Although I have hundreds of watches (my compulsive collecting vice is not limited to caculators) I almost never wear one. Only when I go hiking with my wife because she always wants to know how many kilometers we did. For that I use a smartwatch with built-in GPS receiver that I bought new from eBay for 20 Euros. When I don't wear it, a charge lasts over four weeks (eat this Apple watch!) so it is almost always ready to wear.

And regarding calculator watches: There can be only one! (or rather zero-one) :-)

Regards
Max

[Jim Horn]

Can be only one? Would that be the Hewlett Packard Model One Digital Wrist Instrument, a.k.a. the HP-01? Or possibly the Casio scientific calculator watches (CFX-200 and such)? I've had both and worn both considerably. Amazing for their times!

[Thomas Klemm]

(11-20-2024 01:55 PM)Maximilian Hohmann Wrote:  And regarding calculator watches: There can be only one!

(11-22-2024 01:40 AM)Jim Horn Wrote:  Can be only one?

µWatch

World's First D-I-Y Scientific Calculator Watch!



References

• The coolest thing since the HP-01
• Sneak Peak #2
• Watch Video
• uWatch Keypad
• EEVBlog
  

[Ren]

At Walmart today, I see they have a 16 button Casio calc watch for ~$22.
Last night, I replaced the battery in my old "Timex" calc watch (CR2016), the LCD then showed
ALarm mode, but none, not even the side buttons worked. An interesting thing was the battery hold down strap said Casio.
Well, the Walmart calc watch was the same body, button layout as the "Timex" one.
So, I'm just guessing that Timex rebadged the Casio unit back in the day.
Ren
dona nobis pacem