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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 Battery

    • Based on 54,399 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Mar 5
Order within 5 hours and 17 minutes
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Color: Clear


Style: F91W-7


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


Country of Origin ‏ : ‎ Thailand


Brand, Seller, or Collection Name: Casio


Model number: F-91WS-7DF


Part Number: F-91WS-7CF


Model Year: 2020


Item Shape: Square


Dial window material type: Glass


Display Type: Digital


Clasp: Tang Buckle


Case material: Resin


Case diameter: 30 millimeters


Case Thickness: 8 millimeters


Band Material: Resin


Band size: Unisex


Band width: 20 millimeters


Band Color: Clear


Dial color: Gray


Bezel material: Resin


Bezel function: Stationary


Calendar: Day-Date


Special features: Water Resistant


Item weight: 2.72 ounces


Movement: Quartz


Water resistant depth: 30 Meters


Warranty: Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 5

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • A True Utilitarian Classic Watch
Color: Black Style: F-91W-1
I love this watch because of its simplicity. I consider this watch to be utilitarian and perfect for anyone who works with their hands, outdoor laborious work; basically a tradesman’s watch. It is basically the same watch from many years ago introduced by Casio that started the digital watch revolution. Its old style uniqueness is a conversation starter as well. The price and watch is such that you can put it through the wringer and not worry or feel bad about it. It certainly will hold up to whatever you throw at it. Yes, it’s small, the band could be better, but it’s actually just perfect how it is and what it is for. I love this watch and it makes me smile every time I look at it - a sort of nostalgic simplicity that is just there, kind of like a reliable friend. Great watch, but know your expectations and requirements before ordering to make sure it will be what you want. ... show more
Reviewed in the United States on October 5, 2024 by IT Gal
    • awsome and stylish cheap watch
Color: White Style: F91WM-7A
I love this watch. The resin band will break at some point and it is easier, cheaper to buy a new one instead of looking for another band. Only annoying thing about it is bending your wrist back often presses 24hr button. Changing the band is pretty annoying also.
Reviewed in the United States on December 28, 2024 by Subetei
    • Best watch to own
Color: Gold Style: F91W
Low profile watch for cheap that’s tough and durable and has been very water resistant for me through all the times I’ve gone in a lake without taking it off on accident.
Reviewed in the United States on February 8, 2025 by Joshua Pratt
    • My favorite EDC watch
Color: White Style: F91WM-7A
This iconic little timepiece proves that reliable functionality never goes out of style. Don't let the modest price tag fool you - the F91W is a masterclass in practical design that has rightfully earned its cult following. The display is crisp and easily readable in most conditions, with the LED backlight providing just enough illumination for those midnight time checks. The button layout becomes second nature quickly, making it easy to access the surprisingly comprehensive feature set. The stopwatch has served me well for everything from cooking to workouts, while the daily alarm has never failed to wake me up. The slim profile and lightweight design mean you'll often forget you're wearing it until you need it. What's particularly impressive is its durability. Despite the plastic construction, it handles daily wear and tear like a champ. The water resistance has protected it through countless hand washes and unexpected rain showers. The 7-year battery life isn't just marketing - these things really do run forever on a single battery. Sure, it's not going to win any luxury fashion awards, but that's entirely missing the point. This watch embodies the beautiful intersection of functionality, reliability, and simplicity. Whether you're using it as a trusty backup, a gym companion, or your daily driver, the F91W just works. It's a refreshing reminder that some designs are simply timeless. ... show more
Reviewed in the United States on January 22, 2025 by CJ
    • King of digital , with a poor backlight
Color: Black Style: F-91W-1
Everyone knows this watch is a rockstar. Reliable ; sturdy, ticks and tocks for years on end. Super lightweight and comfortable as heck. My only issues are its notoriously poor backlight (charming in its own way but not very useful ) and the watch looks a bit small on my small to medium sized wrist. I ordered a Casio 217 so we will see if it checks all the boxes. I will keep this watch on standby though. Great little watch. ... show more
Reviewed in the United States on November 3, 2024 by Wizzle
    • A great watch if you're into usefulness and not interested in impressing others
Color: Black Style: F-91W-1
Really impressive and at a great price. Not difficult to set up with date and time (all I use it for) and fits well on my wrist (I'm tall). My past such Casio died after many years and this was a good purchase.
Reviewed in the United States on January 29, 2025 by reader
    • Great!
Color: Black Style: F-91W-1
Awesome watch! serves a great purpose. works well. tells time!
Reviewed in the United States on January 22, 2025 by Chris Zdon
    • Perfect professional-looking and budget-friendly watch
Color: Gold Style: F91W
These watches are built well and can be used in any profession. I have dipped these watches in soapy sinks filled with water numerous times and they still function perfectly. Setting the date and time can be a little difficult at first, but it is pretty easy once you watch a YouTube tutorial. They are built to last and are easily readable, even at night with the built in LED-light. The LED light is quite dim (not sure if it has ever changed since the original release of this watch) but honestly the time is still easy to read and it adds to the character of the watch. ... show more
Reviewed in the United States on January 1, 2025 by Renn Gullion

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