Casio 8-Digit Calculator Watch, Resin Strap, Alarm, Chronograph, CA53W-1


Available on eBay


 Casio CA53W-1

Brand new  Casio”8-Digit Calculator” watch with a black resin strap.   Manufacturers suggested retail of $24.95. 

  • 8-Digit Calculator
    Constants for addition, subtraction, multiplication and division
  • Water Resistant
  • Dual Time
  • Daily Alarm
  • 1/100 second stopwatch  
    Measuring capacity: 23:59’59.99”
    Measuring modes: Elapsed time, split time, 1st-2nd place times   
  • Hourly Time Signal 
  • Auto Calendar (pre-programmed until the year 2079)  
  • Accuracy: +/-15 seconds per month 
  • Battery CR2016
  • Approx. battery life: 5 years
  • Module 437

Size of case/total weight
42.0 x 33.0 x 7.0mm / 29g

All Casio Watches I sell are procured directly from the manufacturer in original Casio packaging and comes with the full USA manufacturer’s 1-Year Warranty.


United States-(Including all FPO/APO addresses) Shipping within the United States is “free” via first class mail or $7.95 via United States Postal Service, Priority mail.  Each additional watch is $1.75 via priority mail.

Canada-First class mail “with” the Casio box is $10.00.  Each additional watch is extra $3.00.

Overseas-First class mail “with” the Casio box is $14.00.  Each additional watch is extra $3.00

***Combined Shipping Instructions***

  To get the correct amount of shipping for combining multiple different items from my Ebay store, the buyer must add all items into the buyer’s “cart first.  Then request a total from the seller from the cart.  
  Corrected combined invoices occurs at various times throughout the day-excluding weekends.  Typically 1-12 hours after the “buy it now” actions.   After corrected invoice is received, please pay via PAYPAL. 

Payment Options

I accept PAYPAL only at this time for all customers-USA and overseas.  ***I do not accept bank or wire transfers under any circumstances.***


The seller is not responsible for any duties/customs charges/taxes levied by any foreign country-this is the buyer’s responsibility as a resident of said foreign country.  The seller is not responsible for any duties/customs charges in foreign countries.  If there are any special instructions the buyer requests on the customs forms for their shipment, it must be requested via a note to the seller on the PAYPAL payment at time of purchase.  We will attempt to accommodate your requests within legal means.  

I have sold over 450,000 items on Ebay since 1999.  Items are usually shipped within 1 “business” day from date of payment for USA shipments.  Canada and overseas is usually 1-2 business days after date of payment.


Have been using this model for 15+ years

Over the years, I've gone through several of these watches, simply from being worn out. It seems I always need a quick calculator along with accurate time in 24-hour format and this watch has always worked well for me. I use the alternate time when wife is in Philippines. In fact, I use ALL the features at one time or another; stopwatch, alarm and I don't worry about getting it wet, either. It's hard to scratch the lens; it's tough. And the band will give out long before the battery. Don't need a stylus for calculating -- fingertip or even fingernail will do. It's a great product like most everything Casio makes.Read full review...

Verified purchase: Yes | Condition: new | Sold by: discountwatch-llc


'Old school' Cool?

I wouldn't call this watch stylish unless the effect you are after is retro! 'Old school'.....Sure! But, practical at times(if you don't have a smart phone or it's not convenient). I have used these watches for well over a decade, and I can tell you the watch band breaks well before the watch dies. One tip though: so far my batteries have lasted a couple of years on average. At that time, when I have replaced the battery, the watch hasn't lived more than 3 months. My suggestion is...when the battery dies replace the watch. Also, be aware this watch face is NOT illuminated.Read full review...

Verified purchase: Yes | Condition: new | Sold by: ditech_store



I was looking for a new watch and this was the perfect one! I love the calculator feature because now I don’t have to whip out my phone every time I do a simple calculation. The only thing I wish it had was a light because in the dark you can barely see anything. But other than that it’s a good watch especially for the cost.Read full review...

Verified purchase: Yes | Condition: new | Sold by: discountwatch-llc


Retro, functional, fashionable

Be different from all those Rolex wanna be’s, this watch here from this seller is all you need. Extremely affordable, durable, & different. Perfect way to show your personal style & also perfect for a camping trip/ outdoorsman. Great way to get off your phone too. & extremely slim!! I️ really love this watch & this seller was amazing, fast shipment, cheapest new price.Read full review...

Verified purchase: Yes | Condition: new | Sold by: discountwatch-llc


Best calculator watch for the money by far.

Do you like calculator watches? if you do, you probably know that Casio makes the best and has for many years. This is a time tested proven model, unchanged for well over a decade. Small, lightweight, simple to understand and use, fairly rugged, very inexpensive. I don't baby and protect mine at all and they lasts several years. I eventually do ruin them and buy another, now on my third one.
There are 3 things I think would make them better. The month and day should always show, instead of being one button push away. The display needs a tiny, low drain LED light for night viewing. And I always replace the rubber buckle band with an elastic metal band. Small negatives for all the positives.
Overall, these are really neat looking, fun and useful watches to wear and a terrific bargain. I hope they never stop making them.
Read full review...

Verified purchase: Yes | Condition: new | Sold by: ditech_store


I love this watch.

I have been wearing this watch forever. It does everything I want. I never use another calculator or alarm. Time date it does it all. Sure my phone has all this but I don't care.

Verified purchase: Yes | Condition: new | Sold by: whattimeizit


10/10 would time travel with

If you sent this watch back in time, at least 3 things would happen without doubt. First, it would survive to today, which is why it exists anyway. Secondly, it's so well designed in merely STYLE ALONE that it would indubitably make a hyena howl and cause a lion to gnaw on gazzelle. It must be added that this watch is nearly 100% waterproof, baby proof, life proof, except for lens scratching - just wear it on the inside of your wrist. Lightweight, forget about it when you need to do dishes but remember it when you need to make a quick calculation, be woken up at any time by 20 consecutive beeps, time a lap around the track or even tell you when you need to check your pot roast by countdown. Thirdly, if somehow you were to ever find this watch still on your wrist after traveling through a black hole, it would likely still be intact to wake you up for your 9-5 desk job. Welcome to the Matrix, Neo - yes, this gadget is the only true love your arm will ever need.Read full review...

Verified purchase: Yes | Condition: new | Sold by: ditech_store


Exalant old standard digital from Casio

I have had several of these watches over the last 12 years. Great if you need to do some calculations, and don't have a pen, and paper handy. They last a full 5 years, and you can replace the battery for more life, although it can be hard to get the battery compartment to seal.
For less than twenty dollars you can't get better value.
Read full review...

Verified purchase: Yes | Condition: new | Sold by: altatac


Excellent product, delivered excellently, at an excellent price!

I've been wearing these basic Casio watches for decades starting with the original. I blame this Casio calculator watches for my not knowing the multiplication tables! These days I buy a new one of these every few years as the straps break and it's cheaper to buy a new watch than to replace the band or even the battery (though I've never had to replace a battery in the newer models--the older ones had a tiny light and would drain the battery). I bought from this vendor as they were domestic, had a good reputation and the price was good. What can I say? It's all great and exactly as described. See you in another few years!Read full review...


A Classic

Sturdy, compact with powerful features. Great at the grocery store for figuring cost per ounce. Great for figuring the tip at a restaurant.

Verified purchase: Yes | Condition: new | Sold by: discountwatch-llc

Additional information



Band Color



Calculator, Calendar, Alarm


Quartz (Battery)

Case Size


Face Color




Case Color


Water Resistance Rating

30 m (3 ATM)

Age Group


Case Material

Plastic, Resin




Factory Warranty




Modern (2000-present)

Band Type

Two-Piece Strap

Band Material




Watch Shape


Case Finish





Casio Databank

Year of Manufacture