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
Condition: New
Buy Now, Pay Later
As low as
$9
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Tuesday, May 12
Recently Viewed
Color: Black
Style: Minimalist
Package Dimensions : 5.39 x 4.61 x 2.72 inches; 4.23 ounces
Item model number : F-91WB-1A
Department : mens
Date First Available : August 21, 2024
Manufacturer : Casio
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.:
Best Sellers Rank: #899 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #1 in Men's Wrist Watches
#1 in Men's Wrist Watches:
Customer Reviews: 4.6 4.6 out of 5 stars (57,872)
Display: Digital
Watch Movement Type: Quartz
Power Source: Battery Powered
Closure Type: Buckle
Strap Type: Two Piece Strap
Water Resistance Depth: 200 Meters
Sport Type: Walking
Clasp Type: Buckle
Water Resistance Level: Water Resistant
Style Name: Minimalist
Shape: Octagonal
Band Color: Black
Dial Color: Black
Face Style: Minimalist
Brand Name: Casio
Age Range Description: Adult
Model Name: F-91WB-1A
Model Number: F-91WB-1A
Manufacturer: Casio
UPC: 889232378329
Item Type Name: Casual Watch
Included Components: 1 x Digital Watch
Item Weight: 0.12 Kilograms
Band Material Type: Resin
Case Material Type: Resin
Crystal: Resin
Case Diameter: 35.2 Millimeters
Band Width: 20 Millimeters
Case Thickness: 8.5 Millimeters
Band Length: 220 Millimeters
Warranty Type: Limited
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, May 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
![Apple Watch Ultra [GPS + Cellular 49mm] Titanium Case with Midnight Ocean Band, One Size (Renewed)](https://m.media-amazon.com/images/I/810JR81LIsL._AC_US500_.jpg)
![Samsung Galaxy Watch Ultra (2024) 47mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, GPS,Titanium Silver [US Version, 1Yr Manufacturer Warranty]](https://m.media-amazon.com/images/I/817QHxxq34L._AC_US500_.jpg)
![Samsung Galaxy Watch Ultra (2024) 47mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, GPS, Titanium Gray [US Version, 1Yr Manufacturer Warranty]](https://m.media-amazon.com/images/I/81UQDoHG7pL._AC_US500_.jpg)
![Apple Watch Ultra 2 [GPS + Cellular, 49mm] - Titanium Case with Blue Ocean Band, One Size (Renewed)](https://m.media-amazon.com/images/I/6165pya85SL._AC_US500_.jpg)
![Samsung Galaxy Watch Ultra (2024) 47mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, GPS, Titanium White [US Version, 1Yr Manufacturer Warranty]](https://m.media-amazon.com/images/I/81rbj+RbISL._AC_US500_.jpg)
![Apple Watch Ultra [GPS + Cellular 49mm] Titanium Case with Green Alpine Loop, Large (Renewed)](https://m.media-amazon.com/images/I/916acEhBkcL._AC_US500_.jpg)
Top Amazon Reviews
Color: Black
Style: Minimalist
I’m very happy with this watch. It is simple, light, and comfortable to wear every day. The time is easy to read and the buttons work well. The battery lasts a long time and the alarm is useful. For the price, the quality is really good. It does exactly what I need. I would recommend it if you want a basic and reliable watch.
...
show more
Reviewed in the United States on February 3, 2026 by Luis H. Luis H.
Color: Black
Style: F-91W-1
Bought this for a friend. It really is a great watch, if all you want is something on your wrist to reliably keep great time and last forever at a low cost. If you want a piece of jewelry or a status symbol, this isn't it, but if all you want is a watch that serves it basic intended function this one is the gold standard.
...
show more
Reviewed in the United States on February 14, 2026 by phoenix
Color: Gold
Style: F91W
My kid loves it. It is slim, lightweight, simple, durable.
Reviewed in the United States on February 20, 2026 by JC
Color: Black
Style: F-91W-1
I’m over big, bulky watches. I’ve got my Suunto and a couple G-Shock watches. I still wear them, still love them, but mostly I just want a watch that keeps nice, precise time, doesn’t stand out from my wrist 3/4 inch and hopefully looks juuuust a little dorky. I’m also cheap. Waterproofness is important to me. I work a desk job. I commute by bus or train- watches help with that. I like to go on a run a couple times a week and wear a watch. I don’t sleep or shower with my watch on unless I’m camping or in a hotel. I like digital over analog because I kind of like to know exactly what time I think it is and I only ever estimate when I’m reading an analog watch because I’m lazy. Also, when I’m in a meeting or I’ve been pinned-down by someone I don’t want to talk to and I want to know if this really is taking forever or if my perception of the passage of time is just being warped- it’s easier to sneak a peek at a digital watch and get a precise read. I realized a few months ago that I really am just as happy wearing a $15 Casio as I am with my $250 Suunto and that most days I don’t need to know the barometric pressure. Some days, yes. Most days, no. But I like having a variety of watches (including the Suunto, which is fabulous). And I like to choose which watch to wear each morning. That’s fun for me. Recently I got on Amazon and ordered a bunch of new cheap Casio watches. I got four new watches for $52. I think Timex’s are over-priced. That’s how cheap I am. Casio W-800HAV ($20-ish) Digital Black. My eight-year old son and I each got one of these watches for Christmas 2016. We both love it. We both have other watches but wear this one the most. It has a fairly low profile- doesn’t catch on pockets or shirt sleeves. I love the light- it looks stupid, like piddly. But it actually lights the face well. I go jogging at night sometimes. The light works well enough for me to see how slow I am even while I’m bouncing down the road. And it’s got “Dual Display”. I don’t know what else to call that. It shows the time on one part of the screen and at the same time it show the stopwatch numbers. Nice to keep track of both. Or, If I’m out and about, I’ll set a stopwatch when the train goes by because I know that the train comes by every 15 minutes. So I can see when I’m coming up on another 15-minute mark and also see the time on the sub-display. Casio F-201WA ($10.47) Digital Black. Comfortable. Lightweight. Easiest buttons to push. Good light. I like that it has countdown timer and lots of alarms. I miss being able to see the time when it’s in stopwatch mode like I can with the W-800HAV and the WV-200A. Casio WV-200A ($40-ish) Waceceptor Digital Black with chrome and red. Looks good. Like the steel case. Good protection for the glass. Relatively heavy. A liiiiitle too thick. Really nice buttons. Great electro-luminescent light. This one is the only watch of the group that you can set it so it doesn’t beep every time you push a button. I really like being able to turn the beep off. Sometimes I like to set a stopwatch in a meeting so I can see how long somebody is going on with some bullsh*t. Strangely, timing somebody’s bullsh*t is a nice distraction from the bullsh*t. But I don’t like my watch to beep when I’m doing pushing buttons. “Dual display”- you can still see what time it is when you’re in other modes. Countdown timer is nice and many of my other watches don’t have one. I don’t give it extra points for the whole Wave Ceptor thing. Doesn’t add any value for me and it kinda sucks battery. This watch has been on my wrist for a full day of snorkelling and handled it beautifully. I live in a land-locked state, so when I get to the ocean, I’m in the water ALL DAY LONG. I can’t dive deeper than maybe 20 feet, so it’s not a serious test for a watch that says it’s good to 200m. But if you’re diving to 200m and time is critical, you’re going to spring for something more than a $40 Casio. (I love you, Casio). Casio HDA-600 ($14.79) Black Analog. Not the most comfortable. Kinda squeezes my wrist from bone to bone or flops around a bit. I dunno, it just fits weird. YMMV. Love the face protector. Can’t wait until it starts to look a little banged up. Glowy dots on the hands aren’t really impressive. Date window works perfectly. Looks tough but it’s probably not. I like it a lot. Casio MQ24-7B2 ($14-something) White-faced Analog. Incredibly light. Truly forget that you’re wearing it. Easy to read. No date window. No lumi. Nice, simple and never catches your sleeve in a dress shirt. Yes, I’m fancy. Some people are smart enough to read an analog watch that doesn’t have numbers on it- just dots. I’m not one of those people. I screw it up enough when there’s numbers. This has numbers. I like numbers. Haven’t tested this one for waterproofyness. Casio only says it’s water resistant. I hardly ever do underwater demolitions anymore. Casio A168W-1 ($16.15) Stainless Digital. I love / hate this watch. I don’t know if Casio was really trying to make a watch that looks fancy but it’s really a dork-bomb, or if they we’re going for dork-bomb as their aim. Either way. This watch is a stunning success. I think this watch is the pinnacle of nerd-swank. 1980’s wannabe stockbroker, cool old guy who doesn’t give a sh*t, little bit of silver under the sleeve to catch someone’s eye- oh wait it’s a friggin Casio digital. I mean, it’s chrome-plated PLASTIC for crying out loud. How awesome is that? I love all of that. Love it. It’s got the Illuminator light, which works great. Clock, date, stopwatch and alarm. No countdown timer. The metal band is not comfortable. It’s got edges and it pulls on my arm fur. Clasp works great and it’s wicked-easy to adjust. Slips under a dress shirt easily. Again: super-dorky. Makes me smile every time I put it on. Then wince when it pulls the fur. Casio F91W-1 ($11.35) Black Digital. I like this watch a lot. It’s super thin. Very lightweight. The light looks stupid but it works well. The buttons are easy to hit. It ranks pretty high on the ‘Dork’ scale. People recognize it. Hold that one button down and it says CASIo. It’s great. Proud to say I’ve never worn this watch along with flannel and a beanie. Never.
...
show more
Reviewed in the United States on October 4, 2016 by James Davis James Davis
Color: Black
Style: F-91W-1
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!
...
show more
Reviewed in the United States on December 31, 2016 by Patrick Mains
Color: Black
Style: F-91W-1
Affordable watch with all necessary functions for my purposes. Alarm is loud enough but not too loud and it will stop on its own after maybe ten chimes or so. The only real complaint I have is that the button that lights up the screen is also used for setting the alarm so you can’t set the alarm in dim light, and it has to be held down for the light to be on, and it’s not very bright. But as a simple travel watch it’s perfectly functional and easy to use, I like the style, and it’s comfortable to wear. Also it’s a great price.
...
show more
Reviewed in the United States on December 15, 2025 by Travis