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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 61,012 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jul 28
Order within 15 hours and 53 minutes
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Color: Black


Style: Minimalist


Product 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: #2,433 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #2 in Men's Wrist Watches


#2 in Men's Wrist Watches:


Customer Reviews: 4.6 4.6 out of 5 stars (61,012)


Display: Digital


Watch Movement Type: Quartz


Additional Features: Alarm, Chronograph, Light Up


Power Source: Battery Powered


Strap Type: Two Piece Strap


Water Resistance Depth: 200 Meters


Sport Type: Walking


Clasp Type: Buckle


Water Resistance Level: Water Resistant


Closure Type: Buckle


Style Name: Minimalist


Shape: Octagonal


Band Color: Black


Dial Color: Black


Face Style: Minimalist


Brand Name: Casio


Model Name: F-91WB-1A


Included Components: 1 x Digital Watch


Model Number: F-91WB-1A


Item Weight: 0.12 Kilograms


Manufacturer: Casio


UPC: 889232378329


Manufacturer Part Number: F-91WB-1A


Unit Count: 1 Count


Age Range Description: Adult


Item Type Name: Casual Watch


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, Jul 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Perfect everyday watch
Color: Black Style: F-91W-1
The perfect Watch! Super affordable, accurate, thin, and durable. It wears very comfortably and it’s lightweight so you can barely feel it. It is also super easy to read the time at a glance as well. The light could be stronger but that’s a running issue with Casio. Overall, this watch will get a lot of wrist time. The best everyday beater watch ... show more
Reviewed in the United States on April 26, 2026 by Amazon Customer

  • A nice, simple watch!
Color: Black Style: Minimalist
I love the F91W. It's simple, works well, and just looks good.
Reviewed in the United States on June 9, 2026 by L. L.

  • Awesome everyday watch Awesome everyday watch
Color: Black Style: F-91W-1
I wear this watch everyday. It’s been durable, it only has a few scuffs for how much I wear it and the job field I work in. I love the classic Cassio style, it goes great with any outfit. The functionality is great as well, I use the stopwatch and alarm daily. This is a great watch for everyday wear and for collectors alike. ... show more
Reviewed in the United States on June 22, 2026 Reviewed in the United States on June 22, 2026 by TJ Furio

  • Must buy watch , just does what you need from a watch.
Color: Black Style: F-91W-1
Love how small and comfortable it is , it doesn't get snagged on thing like bigger watches. It's easy to read for its size. Amazing watch especially for just 20 bucks , the only complaint is the band is small , I'm on the last 4 of holes on the band.
Reviewed in the United States on May 27, 2026 by Garrett

  • Good watch for the money. Poor night light function.
Color: Black Style: F-91W-1
A nice watch for the money. It's comfortable and does the job. I returned it due to the poor design of the light to see the time at night. It barely puts out any light. Might as well not even have it.
Reviewed in the United States on March 9, 2026 by Michael Morin

  • Very good basic digital watch Very good basic digital watch
Color: Black Style: F-91W-1
It's a classic watch that does what its supposed to. It's reliable and keep times well, which this model has earned. The build quality and materials feel solid for a basic watch. It's also surprisingly comfortable and I often forget I am wearing it. The appearance of the watch is fine. It's not a fashion item, but you know what you are getting. The drawbacks to the watch I feel are the weak backlight and that it it's not fully waterproof. That said, the backlight is still usable and in my experience the watch handles splashes and things like showers just fine. Overall I think it's a great value if you want a basic digital watch that will last you a long time. This watch has been around since 1989 and still is a popular watch, and for good reason. ... show more
Reviewed in the United States on April 24, 2026 Reviewed in the United States on April 24, 2026 by Ryan

  • Durable, light, and water proof!
Color: Black Style: F-91W-1
Battery lasts long. It's water proof! Very light! AMAZING!
Reviewed in the United States on June 23, 2026 by Toshisada Onishi

  • A classic
Color: Black Style: F-91W-1
I bought the Casio F91W as a reliable timepiece for work, and it has been perfect. It's lightweight, comfortable, easy to read, and keeps accurate time. The battery lasts a long time, and the classic design never goes out of style. Great value!
Reviewed in the United States on June 15, 2026 by OG STYLN'

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