Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio

(55637 customer reviews)

$21.48

$21.48

Editor’s Choice — discover the Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio, built for performance and designed for life in the United States.

About Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year…

  • LED light, Stopwatch, Daily Alarm
  • Auto-calendar, 12/24 Hour Format
  • Approx. battery life: 7 years on CR2016
  • Water Resistant – Do not submerge in water, item is not waterproof, not meant for showering/bathing or swimming

The Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio combines reliability, modern design, and user-focused engineering. Perfect for everyday use, it delivers exceptional results for American customers who value innovation.

Specification: Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio

Brand Seller or Collection Name

Casio

Model number

F-91W-1X

Part Number

F91W-1

Item Shape

Square

Dial window material type

Glass

Display Type

Digital

Clasp

Buckle

Case material

Resin

Case diameter

35 millimeters

Case Thickness

8 millimeters

Band Material

Resin

Band size

mens

Band width

18.5 millimeters

Band Color

Black

Dial color

Gray

Bezel material

Resin

Bezel function

Stationary

Calendar

Day-Date

Special features

Alarm, Lightweight, Water Resistant

Item weight

1.9 ounces

Movement

Quartz

Water resistant depth

30 Meters

Photos: Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio

55637 reviews for Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio

4.5 out of 5
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  1. Amazon Customer

    This watch works great as a cheap watch. I have a Samsung Watch 7 as well for GPS and Activity Tracking. I have gone through several of these watches (around 3 since 2022).

    For some reason the glass on this watch cracked on its own and the crack spread through the whole screen. I didnt do anything to it. I have only had it for a couple of weeks. My first one lasted me several years.

    I guess it must have been a manufacturing defect.

    This watch has a very low profile on your wrist and gives you the date, which is really useful.

    I swam with the first watch in the Atlantic Ocean, the Pacific Ocean, and the Indian Ocean several times and shower with it everyday and it is most definitely waterproof (Im not sure about how deep that would work, but it works for regular swimming).

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  2. David H

    As someone with small wrists (about 7 inch), I never really wore watches because most men’s watches were just too large and just didn’t look right on my arm. This watch is small and actually looks the “correct” size on my arm. I’m instantly a fan of this watch, and I am already looking at getting a couple more of these simple Casio models. I like how most of these watches are basically the same watch in terms of features and controls. Time, date, alarm, stopwatch… That’s really all I need from a watch, and the price point can’t be beat. Why not get a few!

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  3. Korova

    ساعة كلاسيكيه ترجعك ٣٠ سنة ورا لها ذكريات معي وحبيت ارجع اشتريها من جديد ومازالت تعجبني

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  4. Collin Bryant

    A great casio watch for a great value. Easy to read with classic retro looks. Pretty small format watch perfect for my 15yo daughter. Easy to set up; has more than enough features for this price point. Has the casio time accuracy we expect!

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  5. Boston

    This watch is absolutely AMAZING! It looks very unique with its own design but still manages to look nice no matter the occasion. The features are nice, I like the stopwatch but the alarm personally isn’t loud enough for me, but that doesn’t matter because most people don’t use their watch for alarms. I haven’t worn it enough for durability yet but it with stands scratches pretty well. The band is also very comfortable and easy to adjust. It’s the perfect watch if you just want a watch not nice enough to be a rolex, but not smart enough to be an apple watch. Just time! And time is does incredibly well, it’s very reliable, looks nice, and I forget I’m even wearing it.

    Okay here are the not-so-good parts, (this watch is perfect but here’s what the picky people should look out for)
    The few times I need to click the buttons they feel weirdly uncomfortable to press and hard. Also, the backlight is VERY dim, I know it’s too small to but a full backlight but atleast more than one LED. I have to squint to see it and the oppisite side you can’t see anything. Doesn’t come in clutch the few times I need to use the light.

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  6. Sackett Outbound

    Had this watch in basic training and I love them. Very basic of course, but they are lightweight, durable as all hell (they survive everyone in basic and I doubt most of us are living that kind of life daily 😂) fit snugly on your wrist, small face allows good wrist movement and doesn’t jab the back of your hand. shower with it, swim with it, run with, lean with it, rock with it. I wore it so often I had tan lines. 7 year battery life. You might die before the watch does.

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  7. Amazon Customer

    Lightweight, Classic, cheap, does the work.
    Very good watch for college in my opinion, also pretty durable,

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  8. Sackett Outbound

    Ligero y cómodo

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  9. Joel Ureña Javier

    I loved it! Its beautiful, lightweight design and compact body make it comfortable to wear on the wrist. Unlike other watches, thick-case watches have always bothered me, but this one was a game-changer. I highly recommend it. Setting it up was easy, the price was good, and the screen is readable! 💯

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  10. Brandon Enriquez

    The Casio F91W is a classic digital watch that’s perfect for everyday use. It’s lightweight, durable, and super reliable. The display is easy to read and shows the hour, minute, second, day, and date. It also has helpful features like a daily alarm, LED light, and a 1/100 second stopwatch—great for timing quick tasks.

    One of the best parts? The 7-year battery life means you rarely have to worry about it dying. Plus, it’s water-resistant, which adds to its practicality for daily wear.

    If you’re looking for a simple, affordable, and trustworthy digital watch, the Casio F91W is hard to beat.

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    Last updated on October 19, 2025 2:41 am Details
    Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio
    Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year… by Casio

    $21.48

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