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 Battery

$38.69

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Description


Price: $38.69
(as of Nov 12, 2025 06:49:21 UTC – Details)

From the manufacturer

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Casio Values

“Necessity is not the mother of invention, invention is the mother of necessity.” These are the words of one of Casio’s founders. The people who created Casio were determined to ‘invent necessity’- to create products that met latent needs with groundbreaking capabilities no one had ever seen before. Ever since, Casio has been doing just that, bringing new discovery and delight to people around the world. This is Casio’s way of building an even more prosperous, richly rewarding world.

Key Features

100 Meter WR100 Meter WR

30 Meter (100 Feet) Water Resistant

Suitable for everyday use. Will withstand accidental splashes but not suitable for swimming.

Multi AlarmsMulti Alarms

Daily Alarm

StopwatchStopwatch

1/100 Second Stopwatch

Casio LogoCasio Logo

Casio Accuracy and Reliability

Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 6 x 6 x 4 inches; 2.72 ounces
Item model number ‏ : ‎ F-91WS-7DF
Department ‏ : ‎ Unisex
Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)
Date First Available ‏ : ‎ April 3, 2020
Manufacturer ‏ : ‎ VLC Distribution
ASIN ‏ : ‎ B086RNZX13
Best Sellers Rank: #863 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #1 in Men’s Wrist Watches
Customer Reviews: 4.5 4.5 out of 5 stars 56,096 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

Reviews (12)

12 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 Battery

  1. Javier

    Su calidad y durabilidad
    Title: The Classic Casio – Perfect Daily Watch!”You simply can’t go wrong with the Casio F91W. It’s the definition of a reliable, no-fuss watch. It’s incredibly lightweight and comfortable—you barely notice it on your wrist.All the essential functions are there: alarm, stopwatch, and a light for checking the time in the dark. Plus, its water resistance is perfect for daily life, like washing your hands or getting caught in the rain. A total classic and an absolute bargain!”

  2. Joel Ureña Javier

    Simple and great!
    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! 💯

  3. Ramona O.

    Great watch, easy to setup
    This is a really fun and functional “throwback” watch! It looks just like the digital watches when I was a kid in the 80s. Got this for my son for travel because it doesn’t look expensive, so hopefully it won’t attract any attention. It’s great that it’s SUPER easy to use. My son was in a hurry and asked us to set it for us and I was pulling out the instruction manual, ready for a complicated setup but my husband grabbed it and had the time set in 30 seconds. And this is a great price for a good watch that is also water resistant!

  4. Boston

    Amazing Watch, except a few things.
    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.

  5. Patrick Mains

    Great Watch with a Classic Design
    I had been looking for a relatively cheap digital watch, preferably from Casio, as a simple watch to start the New Year off with. When I searched “casio digital watch” this was about the second product listing, so I knew it had to be a decent watch. I had worn it for a day or two and have since replaced it with the [insert link here]. Here is my review of the Casio F91W-1 and an explanation of why I replaced it.—————————————————————————————————Design & Build:For just over $10, this Casio has great build quality and a cool retro design. In fact, the Casio F91W has been produced since 1991 and even has its own Wikipedia (https://en.wikipedia.org/wiki/Casio_F-91W) page! The design of the Casio is simple and classic and is probably one of the reasons why this watch is still successful after 25 years! The watch is very thin, – only 8 millimeters – especially for a digital watch, which is about the same thickness as an iPhone 5. The watch face is made of plastic and is not recessed into the body, meaning that while it is flush with the casing it can be scratched easily. The casing of the watch is made of resin which is pretty standard in most digital watches. The band is also made of resin and is comfortable enough for a $10 watch. One complaint that I have about the watches build quality is the material of which the band buckle is made of. The band buckle is made of ordinary black plastic which I can see breaking in a year or two. While I can’t vouch for the longevity of this watch, I can almost confidently say that that plastic buckle will be the first part to break. Other than that, the watch features nice easy-to-press buttons which stick out from the watch a millimeter or two. The buttons are very easy to press, which can be both a good thing and a bad thing as they might be pressed accidentally. The top left button activates the display light which is very weak and only lights up from one side of the display, meaning that the left part of the display is kind of bright while the further you get to the right side of the display the light dims drastically. This seems like one of the areas Casio had to cut corners with in order to cut the cost, however, it is only a minor complaint with a $10 watch. The light shines a green light and only turns on while the button is depressed, which is kind of annoying. Digital watches I have owned in the past stayed on for a few seconds, but again, this is only a minor complaint with a $10 watch. Finally, the Casio features water RESISTANCE, not waterproofing, therefore I wouldn’t go swimming with it, however, other users have reported diving with it so the decision is ultimately up to you. Overall, the Casio F91W features a simple and timeless design, as well as pretty good build quality for $10. The display light has some issues and the watch is only water resistant, but these things don’t matter too much in a $10 watch.—————————————————————————————————Fit:I have around a 6-inch wrist and this watch fit great. I used a hole more towards the end of the band away from the case and it fit comfortably while not being too loose. The watch is very light and once it is on you almost forget it is there. The case is also thin and doesn’t add much bulk to your arm. For me, the watch face was a good size proportionate to my wrist. It might have been a little small for my liking but it definitely didn’t get in the way. Overall, I am happy with how the F91W fit on my wrist.—————————————————————————————————Overall:This watch is a great watch for the price. While I can’t vouch for the longevity of this watch, I can say that it features a great design and decent build quality, as well as a good and comfortable fit (at least for my wrists). To conclude, if you have a bit over $10 to spend on a digital watch, you really can’t go wrong with the Casio F91W.—————————————————————————————————Pros:- Classic simple design- Decent build quality- Comfortable- Thin and light- Easy-to-press buttons- Good fit for me- Accurate time-keeping (Casio claims that the watch is accurate to ±30 seconds per month due to the quartz movement of the watch)Cons:- Weak plastic band buckle- Easily scratched plastic face- Weak and poorly designed display light- Buttons may get accidentally pressed- Only water resistant—————————————————————————————————Why I Replaced it:Even though the Casio F91W is a great watch for the money, I decided I wanted something a bit nicer, even if it meant spending a little bit more money. After browsing Amazon for other Casio watches, I came across the G-Shock G100-BV Men’s Black Resin Sport Watch. The reason why I replaced the F91W isn’t because it isn’t a good watch, instead, I replaced it because I wanted something a little nicer with a more rugged design. To conclude, I replaced the F91W not because it wasn’t good, but because of personal preference.—————————————————————————————————If you found this review helpful I would appreciate it if you clicked the “helpful” button below this review. Thanks!

  6. Collin Bryant

    A great digital watch for a STEAL!
    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!

  7. David H

    Casio F91W For the win
    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!

  8. Ligero y cómodo

  9. Mirash Majeed

    Classic one ❤️

  10. Nico

    Ich habe diese Casio-Uhr für den ersten Schultag meines Sohnes gekauft. Sie funktioniert einwandfrei und er ist sehr zufrieden. Die Größe ist ideal für kleine Kinder. Rundum empfehlenswert! ⌚✨

  11. Yousef al-mutairy

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

  12. Gilles

    Simple, efficace, sobre et fantastique modele

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