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phoinix | Staff 18.7K Views
Jun 19, 2026 6:39 AM

34mm Casio Data Bank Watch w/ 8-Digit Calculator & Resin Band (Olive Green)

$24

$40

40% off
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Deal Details
Amazon has 34mm Casio Data Bank Watch (Olive Green, CA-53WF-3BCF) on sale for $23.97. Shipping is free w/ Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for finding this deal.

About this product:
  • Core Functions
    • 8-digit calculator with constants for +, –, x, ÷
    • Dual time display
    • 1/100-second stopwatch (up to 23:59'59.99'')
    • Measuring modes: elapsed time, split time, 1st–2nd place times
    • Daily alarm + hourly time signal
    • Full auto-calendar to year 2099
    • 12/24-hour format
    • Regular timekeeping (hour, minute, second, AM/PM, year, month, date, day)
    • Button operation tone on/off
  • Build & Durability
    • Water resistant (hand washing / splashes only; not submersible)
    • Resin case and bezel
    • Resin glass
    • Resin band
  • Dimensions & Weight
    • Case size: 43.2 x 34.4 x 8.2 mm
    • Weight: 25 g
  • Power & Accuracy
    • Battery: CR2016
    • Approx. battery life: 5 years
    • Accuracy: ±15 seconds per month

Editor's Notes

Written by Neo45 | Staff
  • About this Store:
  • Additional Information:
    • Our research indicates that this deal is $9.53 less (28% savings) than the next best available price from a reputable merchant with prices starting from $33.50 at the time of this post.
    • The price for this deal matches the previous Frontpage Deal.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 34mm Casio Data Bank Watch (Olive Green, CA-53WF-3BCF) on sale for $23.97. Shipping is free w/ Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for finding this deal.

About this product:
  • Core Functions
    • 8-digit calculator with constants for +, –, x, ÷
    • Dual time display
    • 1/100-second stopwatch (up to 23:59'59.99'')
    • Measuring modes: elapsed time, split time, 1st–2nd place times
    • Daily alarm + hourly time signal
    • Full auto-calendar to year 2099
    • 12/24-hour format
    • Regular timekeeping (hour, minute, second, AM/PM, year, month, date, day)
    • Button operation tone on/off
  • Build & Durability
    • Water resistant (hand washing / splashes only; not submersible)
    • Resin case and bezel
    • Resin glass
    • Resin band
  • Dimensions & Weight
    • Case size: 43.2 x 34.4 x 8.2 mm
    • Weight: 25 g
  • Power & Accuracy
    • Battery: CR2016
    • Approx. battery life: 5 years
    • Accuracy: ±15 seconds per month

Editor's Notes

Written by Neo45 | Staff
  • About this Store:
  • Additional Information:
    • Our research indicates that this deal is $9.53 less (28% savings) than the next best available price from a reputable merchant with prices starting from $33.50 at the time of this post.
    • The price for this deal matches the previous Frontpage Deal.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | Staff

Community Voting

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Top Comments

Beefalo1
409Comments
22Reputation
To look cool
Go to Comment
MellowPear1878
76Comments
18Reputation
I passed chemistry in highschool by saving the periodic table of elements as phone numbers in this watch. Wore it with the face under my wrist so I could easily scroll through the elements without the teacher seeing my stating at my wrist. Stupid curriculum having kids memorize the periodic table instead of actually understanding it.
Go to Comment
CalmCemetery698
5Comments
10Reputation
I wish they would make this with a backlight.
Go to Comment

Community Reviews

This Casio is a nostalgic calculator watch with a compact 34 millimeter case, olive green resin band, and a look that draws compliments. The calculator functions are handy for quick tasks like currency conversion, and the battery life is reported at about three years on a 1.5 volt cell. The main drawbacks are the tiny buttons, the hard to read inverted display, and the lack of a backlight. The strap also runs a bit short for larger wrists, making it more of a style piece than a practical everyday tool.

  • The watch can help with currency conversion while shopping in international stores.

    PurpleSeed694

  • The watch runs on a 1.5V battery for about three years.

    BostonBatman

  • The inverted display and calculator layout can support discreet periodic-table scrolling under the wrist.

    MellowPear1878

  • The calculator-style design can attract compliments compared with more expensive watches.

    JungleFish428

  • The watch lacks a backlight, which makes button use harder in low light.

    CalmCemetery698marcusm9366

  • The "data bank" label can be misleading because the watch does not store phone numbers or calendar events.

    thatguymarkLilyly

  • Tiny buttons can be difficult to press, and the inverted display can be hard to read.

    haruman

  • The strap can be short for larger wrists, with fit working best around a 7-inch wrist.

    haruman

Common Questions (4)

AI-generated summary based on comments from the community. Updated ago

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40 Comments

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Jun 19, 2026 4:11 PM
31 Comments
Joined Jun 2019

This comment has been rated as unhelpful by Slickdeals users.

Jun 19, 2026 4:24 PM
409 Comments
Joined Jun 2021
Beefalo1Jun 19, 2026 4:24 PM
409 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from JI1949 View quoted comment :
why do you need calculator in watch?
To look cool
4
Jun 20, 2026 12:21 AM
34 Comments
Joined Feb 2019
SharpGuitar873Jun 20, 2026 12:21 AM
34 Comments
Quote from JI1949 View quoted comment :
why do you need calculator in watch?
The same reason as we have calc in mobile. Back then it was so cool.
Jun 20, 2026 12:47 AM
5 Comments
Joined Mar 2022
CalmCemetery698Jun 20, 2026 12:47 AM
5 Comments

Our community has rated this post as helpful. If you agree, why not thank

I wish they would make this with a backlight.
2
Jun 20, 2026 12:59 AM
76 Comments
Joined Dec 2024
MellowPear1878Jun 20, 2026 12:59 AM
76 Comments

Our community has rated this post as helpful. If you agree, why not thank

I passed chemistry in highschool by saving the periodic table of elements as phone numbers in this watch. Wore it with the face under my wrist so I could easily scroll through the elements without the teacher seeing my stating at my wrist. Stupid curriculum having kids memorize the periodic table instead of actually understanding it.
3
8
1
Jun 20, 2026 1:07 PM
1.7K Comments
Joined Nov 2009
thatguymarkJun 20, 2026 1:07 PM
1.7K Comments

Our community has rated this post as helpful. If you agree, why not thank

"The Casio CA53WF-3B does not store phone numbers or calendar events. [1, 2]" Don't think it makes sense to call it data bank when it doesn't retain data, it's just a calculator watch.
2
1
Jun 20, 2026 1:18 PM
412 Comments
Joined Aug 2019
OrangeApparel8487Jun 20, 2026 1:18 PM
412 Comments

Our community has rated this post as helpful. If you agree, why not thank

Not me remembering 35 years ago this was the shizzle and you were elite in school if you had this watch.
1
1

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Jun 20, 2026 1:36 PM
1.7K Comments
Joined Sep 2005
spidrwJun 20, 2026 1:36 PM
1.7K Comments
The original response to a math teacher saying "you won't always have a calculator with you".
8
Jun 20, 2026 1:54 PM
59 Comments
Joined Apr 2019
Balut228Jun 20, 2026 1:54 PM
59 Comments
Dwight would like this deal
Jun 20, 2026 2:19 PM
588 Comments
Joined Aug 2014
KonradenJun 20, 2026 2:19 PM
588 Comments
Quote from MellowPear1878 View quoted comment :
I passed chemistry in highschool by saving the periodic table of elements as phone numbers in this watch. Wore it with the face under my wrist so I could easily scroll through the elements without the teacher seeing my stating at my wrist. Stupid curriculum having kids memorize the periodic table instead of actually understanding it.
It's easier to memorize if you understand it's structure.
Jun 20, 2026 2:27 PM
4.4K Comments
Joined Aug 2011
fritzoJun 20, 2026 2:27 PM
4.4K Comments
Quote from Beefalo1 View quoted comment :
To look cool
I had and OG version of this watch in the 80s and it had blister buttons instead of physical buttons. I had to use a pen to press the numbers and ended up ripping the membrane off after a lot of cheat...I mean "use" in math class.
1
4
Jun 20, 2026 2:31 PM
3K Comments
Joined Jan 2004
sn_85Jun 20, 2026 2:31 PM
3K Comments
My dad is an engineer and he definitely rocked this watch in the 90's lol
Jun 20, 2026 2:38 PM
807 Comments
Joined Mar 2019
RogueVariableJun 20, 2026 2:38 PM
807 Comments
Quote from thatguymark View quoted comment :
"The Casio CA53WF-3B does not store phone numbers or calendar events. [1, 2]" Don't think it makes sense to call it data bank when it doesn't retain data, it's just a calculator watch.
Agreed. This is nothing at all like the OG Data Bank watch.

I remember having to hold the Data Bank watch sensor up in front of the CRT screen while patterns of lights and lines flashed on the screen as it "programmed" the watch with all your phone numbers and such.

Don't get me wrong. I had a Casio calculator watch when I was a kid. I thought I was so awesome at the time. 🤣
Jun 20, 2026 2:54 PM
375 Comments
Joined Jun 2008
harumanJun 20, 2026 2:54 PM
375 Comments
I have the beige version of this. Can hardly press the tiny buttons. The inverted display is very difficult to read. Also the strap is a bit short but ok for 7" wrist. Buy it for the looks i guess.

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Pro
Jun 20, 2026 3:46 PM
2.8K Comments
Joined Dec 2006
Cartier
Pro
Jun 20, 2026 3:46 PM
2.8K Comments
Quote from MellowPear1878 View quoted comment :
I passed chemistry in highschool by saving the periodic table of elements as phone numbers in this watch. Wore it with the face under my wrist so I could easily scroll through the elements without the teacher seeing my stating at my wrist. Stupid curriculum having kids memorize the periodic table instead of actually understanding it.
See, that is the issue. Ai is not calculating anything, it's just memorizing

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