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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

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Sep 4 – Sep 17
Order within 16 hours and 53 minutes
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Color: Gold


Style: F91W


Description

Designed for comfort and simplicity, the F91W combines essential features with long-lasting performance — a trusted choice for everyday use. A timeless look that works with anything, any day. A lighter, modern style that stands out without trying. Understated design for a sharp, all-black finish.

Product Dimensions ‏ : ‎ 4.2 x 3 x 2.1 inches; 3.2 ounces


Item model number ‏ : ‎ F91WM-9A


Department ‏ : ‎ Unisex


Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)


Date First Available ‏ : ‎ February 10, 2017


Manufacturer ‏ : ‎ Casio


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


Best Sellers Rank: #389 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #1 in Men's Wrist Watches


#1 in Men's Wrist Watches:


Display: Digital


Watch Movement Type: Quartz


Additional Features: Chronograph, Lightweight, Timer


Power Source: Battery Powered


Strap Type: Two Piece Strap


Sport Type: Walking


Clasp Type: Buckle


Water Resistance Level: Water Resistant


Embellishment Feature: Crystal


Closure Type: Buckle


Style Name: F91W


Shape: Rectangular


Band Color: Black


Dial Color: Gold


Theme: Sports


Pattern: Solid


Face Style: F91W


Character: Fashion


Brand Name: Casio


Model Name: F-91WM-9ACF


Included Components: the brand's case


Model Number: F91WM-9A


Item Weight: 0.09 kg


Global Trade Identification Number: 10


Unit Count: 1 Count


Manufacturer: Casio


Number of Items: 1


UPC: 889232140810


Age Range Description: Adult


Item Type Name: Watch


Manufacturer Part Number: F-91WM-9ACF


Band Material Type: Resin


Case Material Type: Resin


Crystal: mineral


Case Diameter: 38.2 millimeters


Band Width: 18 millimeters


Case Thickness: 35.2 millimeters


Band Length: 8.75 inches


Bands: 1


Warranty Type: Limited


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 4 – Sep 17

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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Top Amazon Reviews

    • Classic Watch and She Loves It!
Color: Clear Pink Style: F91W
A classic, simple, and reliable watch. My wife loves it! Lightweight, comfortable, and easy to use with a timeless design. Great value for the price and a perfect everyday watch.
Reviewed in the United States on July 22, 2026 by MPR
    • Amazing Watch, except a few things.
Color: Green Style: F91W
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. ... show more
Reviewed in the United States on August 19, 2025 by Boston
    • Better than a smartwatch
Color: Green Style: F91W
Great watch. Simple, clean, affordable, and elegant. What more do you need?
Reviewed in the United States on July 5, 2026 by Brian
    • Cool vintage desert storm aesthetic
Color: Gold Style: F91W
Super cool! I get to feel like osama bin laden haha
Reviewed in the United States on August 4, 2026 by Jackson Pavloff
    • Great retro watch, LED lighting needs improvement
Color: Green Style: F91W
I’ve been using this digital watch for a few weeks now, and overall, it’s a solid piece that delivers on most of its promises — with one frustrating flaw. Starting with the positives, the retro display is crisp and easy to read in normal lighting. The numbers are large, clear, and well laid out, so checking the time at a glance is effortless. The watch is lightweight and comfortable enough to wear all day. The buttons feel sturdy and responsive, not mushy or overly stiff, which makes navigating features like the stopwatch and alarm simple. Plus the retro look gets a positive as I can remember these Casios as a kid and they nailed that look. Now for the downside: the LED light function is genuinely disappointing. In low-light or nighttime conditions, the light is so dim that it doesn't help at all. Instead of clearly illuminating the entire screen, it casts a weak glow from only the left side that makes the first digit only slightly more visible than without it. For something designed to be practical and functional, this is a major oversight. Perhaps I got a bad watch and they normally have multiple LEDs to illuminate the entire screen? If you rarely need to check the time in the dark, this watch is a great value and performs well in almost every other way. But if nighttime visibility is important to you, the poor light function could be a deal breaker. ... show more
Reviewed in the United States on February 18, 2026 by brendan
    • Cute, light, comfortable
Color: Clear Pink Style: F91W
I never write reviews but this is the best watch I've ever owned, so I felt like it really deserves it. This watch is so simple and convienent. I love that I don't have to look at my phone everytime I want to check the time or date. The green background light is awesome, dim but does the job. What I love the most is the design. I am 4'11 and 120 pounds and I have tiny wrists, this still looks so light and delicate yet feels sturdy and durable. My favorite part of the design is the resin strap. Because its see-through the watch blends seamlessly with your skin, instead of being a thick solid colored strap which most watches are! It's also a beautiful non tacky color of pink, almost like a dusted rose baby pink. I love to wear it all day long even if I'm just at home because it helps me stay on track with chores, I use it to time stuff I cook etc... Also because the color is subtle enough it goes with everything I wear! I can't wait to buy this for someone else as a gift. ... show more
Reviewed in the United States on April 15, 2023 by Amazon Customer
    • Bang for a buck
Color: Green Style: F91W
Review Image by Sean
Good quality
Reviewed in the United States on June 23, 2026 by Sean
    • Top Tier Casio
Color: Gold Style: F91W
Review Image by Emily
Purchased my second one due to a much earned and warranted band wear out. Pictured on the right is old and new on the left. My old watch was worn daily for 7 years thru blue collar work, water, banged up, and covered in mud, you get the idea. The color fades favorably so it still looks gold even where the paint wears out. Super durable and always works great like any classic Cassio. Simple to use, never needs a charge, and I received many compliments on how cool it looks. Very Comfortable. For reference I am a thin wrist female and yes, this is a smaller watch. Smaller than some of my other Casios. ... show more
Reviewed in the United States on December 5, 2025 by Emily

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