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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: 13 left in stock
Fulfilled by Watch Hop
Arrives Saturday, Oct 24
Order within 16 hours and 44 minutes
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Color: Grey


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 ‏ : ‎ 10 x 10 x 10 inches; 0.74 ounces


Item model number ‏ : ‎ F-91WM-1BCF


Department ‏ : ‎ Unisex


Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)


Date First Available ‏ : ‎ May 18, 2018


Manufacturer ‏ : ‎ Casio


Product Warranty: For warranty information about this product, please click here


Best Sellers Rank: #1,162 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #2 in Men's Wrist Watches


#2 in Men's Wrist Watches:


Display: Digital


Watch Movement Type: Quartz


Additional Features: Alarm, Second Hand, Water Resistant


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: Gray


Theme: Fashion


Pattern: Solid


Face Style: Gray, minimalist, or digital


Bezel Color: Black


Character: Fashion


Brand Name: Casio


Model Name: F-91WM-1BCF


Included Components: Band


Model Number: F-91WM-1BCF


Series Number: 107234743


Item Weight: 22.68 g


Global Trade Identification Number: 25, 50


Manufacturer: Casio


Number of Items: 1


UPC: 889232187525


Age Range Description: Adult


Item Type Name: Watch


Manufacturer Part Number: F-91WM-1BCF


Band Material Type: Resin


Case Material Type: Resin


Crystal: mineral


Case Diameter: 35.5 millimeters


Band Width: 19.25 millimeters


Case Thickness: 8.38 millimeters


Bands: 1


Warranty Type: Limited


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 24

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

    • 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
    • Great product great price
Color: Gold Style: F91W
Great color and style, the light is a little dim but it’s nice at night to check the time and not be blinded by your watch
Reviewed in the United States on July 15, 2026 by Aaron
    • my lovers favorite watch
Color: Green Style: F91W
The Casio F91W Series Digital Watch is a classic timepiece known for its simplicity, durability, and reliability. One of the standout features of this watch is its iconic design. The square-shaped case and minimalist digital display give it a timeless and retro appeal that appeals to both casual users and watch enthusiasts alike. The watch is lightweight and comfortable to wear, making it suitable for everyday use. Functionally, the F91W offers essential features that are practical for daily use. It includes regular timekeeping with hours, minutes, seconds, and a calendar function. The LED light provides illumination for easy reading in low-light conditions, enhancing its usability. The watch is water-resistant, which adds to its versatility and makes it suitable for various activities, including sports and outdoor adventures. The 1/100-second stopwatch function is handy for timing activities and workouts, adding to its practicality. While the watch lacks advanced features like a countdown timer or multiple alarms, its simplicity is part of its charm and reliability. The battery life is impressive, lasting for years without needing a replacement under normal usage conditions. Overall, the Casio F91W Series Digital Watch is a budget-friendly choice that excels in basic functionality, durability, and timeless design. It's ideal for anyone seeking a dependable everyday watch without unnecessary frills. ... show more
Reviewed in the United States on July 11, 2024 by Syd M
    • Reliable, Lightweight, and Classic – A Timeless Everyday Watch
Color: Gold Style: F91W
The Casio F91W is a legendary digital watch for a reason—it’s simple, durable, and impressively functional for the price. Whether you’re looking for a reliable timekeeper or a lightweight backup, this watch delivers exactly what it promises. ✅ Why I Recommend It: • Lightweight & Comfortable: This watch is extremely light and easy to wear all day. The resin strap is soft but secure, making it great for casual wear, work, or workouts. • Clear Digital Display: The screen is easy to read, and the timekeeping includes hours, minutes, seconds, day, and date—all clearly shown. The AM/PM indicator is also helpful for those who prefer 12-hour format. • Reliable Features: It includes all the basics: • Daily alarm • 1/100 second stopwatch • Hourly time signal • LED backlight (enough to check the time in the dark) • Battery Life: One of the biggest pros is the 7-year battery life. It’s set-it-and-forget-it simple—no worrying about recharging or constant battery changes. • Water Resistant: It handles splashes, rain, and hand washing just fine. While it’s not meant for swimming or full submersion, it holds up great for everyday situations. 🧭 Perfect For: • Students • Travelers • Minimalists • Anyone who wants a no-fuss, durable watch at a low price ⸻ 💬 Final Thoughts: The Casio F91W is a classic for good reason. It offers unbeatable value with reliable timekeeping, useful features, and long battery life—all in a lightweight design. It’s not flashy, but it’s incredibly dependable. I highly recommend it as a backup watch, a gift for a first-time watch wearer, or just an everyday essential. ... show more
Reviewed in the United States on June 25, 2025 by Jennifer
    • Big things come in small packages.
Color: Gold Style: F91W
Review Image by Sailolau79
You can’t go wrong with the classic f91w. The new color ways are great and can go with anything. It is simple but reliable. Strap is good. Thin but easy to replace and now you can mod with various color variations. But if you have a wrist larger than 7in it might look funny and tiny. Luckily I can do a small dial but it does look small at times. It looks good in the pic but def on the smaller size. ... show more
Reviewed in the United States on July 1, 2026 by Sailolau79
    • Great watch
Color: Grey Style: F91W
Review Image by Vadym P
It’s awesome!
Reviewed in the United States on August 28, 2026 by Vadym P
    • Boot camp special with some swag
Color: Gold Style: F91W
Review Image by Amazon Customer
Review Image by Amazon Customer
Review Image by Amazon Customer
Feels great on wrist. It weighs virtually nothing. I forget I'm wearing it most of the time. The pushers protrude just a little bit more and I would like them to making it easy to bump and change the mode or accidentally turn on the alarm. But that is my only complaint. It looks great with the gold tone resin case. The time is accurate and very visible. It is a smaller watch so if you have a very large wrist I would not recommend but who knows it could work. All in all great value. And for 20 bucks you can't really beat it. ... show more
Reviewed in the United States on November 15, 2025 by Amazon Customer
    • 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

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