Casio F91W Review: The Timeless Classic That Still Delivers

The Casio F91W is more than just a watch – it’s a cultural icon. For decades, this unassuming digital timepiece has remained a favourite among watch enthusiasts, students, professionals, and even military personnel. Its minimalist design, unbeatable reliability, and practical features make it a must-have for anyone who values function over flash.

Key Features That Stand the Test of Time

1. Ultra-Lightweight & Comfortable

Weighing just 21 grams, the F91W is so light you’ll forget you’re wearing it. The resin strap is soft yet durable, making it ideal for all-day wear. Many users, like Bob from the UK, say: “Very light, you forget you have it on.”

2. Water-Resistant for Everyday Use

While not designed for deep diving, the F91W can handle splashes, rain, and even swimming. RB confirms: “Been under water no problem swimming in the sea.”

3. Precision Quartz Movement

With a highly accurate quartz movement, this watch keeps perfect time with minimal maintenance. The battery lasts for years, meaning no frequent replacements.

4. Practical Digital Functions

• 1/100-second stopwatch – Great for timing workouts or daily tasks.
• Daily alarm & hourly chime – Never miss an important moment.
• Auto-calendar – No manual date adjustments needed.
• 12/24-hour format – Switch between modes effortlessly.

5. Retro Design with Modern Appeal

The rectangular case (33mm) and simple digital display give it a nostalgic yet timeless look. Julie says: “My husband loved his retro watch. Looks great & lots of comments.”

Why the Casio F91W Remains a Best-Seller

• Affordable durability – Built to last without breaking the bank.
• Versatile for all occasions – Works as a sports watch, daily beater, or even a minimalist fashion piece.
• Easy to use – No complicated settings, just straightforward functionality.

What Customers Say

• “Great classic watch, great price.” – Linda J Edwards
• “Simple and effective.” – Ian Mace
• “Perfect for everyday wear.” – Multiple reviewers

Final Verdict

The Casio F91W is a no-nonsense watch that delivers exactly what it promises. Whether you need a reliable daily driver, a gym companion, or a nostalgic throwback, this watch won’t disappoint.

ASIN: B000GAWSDG

CASIO F91W-1 Casual Sport Watch

£14.49 £12.75 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Microlight - a built-in light illuminates the dial from the side Stopwatch: Precise measurement of elapsed time at the touch of a button Alarm function: Daily alarm sounds every day at the time you have set Water resistance: 30 m/3 bar (splash-proof)

Casio F91W-1 Classic Water Resistant Black Digital Wrist Watch,Resin Strap Band

£13.45 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Water Resistant, Micro Light Daily Alarm, 1/100 second digital stopwatch Hourly Time Signal, Auto Calendar, Accuracy: +/-30 seconds per month Battery CR2016, Approx. battery life: 7 years Module 593, Size of case / total weight: 37.5 x 33.5 x 9.5mm /... read more

Casio Unisex F-108WHC-7ACF Classic White Resin Band Watch

£26.47 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Square white watch featuring chronograph functions including 1/100 second stop watch, 7-year battery, 1/10 24-hour countdown timer, and daily alarm 42 mm resin case with mineral dial window Quartz movement with digital display Ribbed resin band with ... read more

Casio Men's W800H-1AV Classic Sport Watch with Black Band, Black, Classic

£26.75 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

10-year battery life 100-meter water resistance LED backlight Dual time Approx. battery life: 10 years on CR2025

Casio Men's 'Classic' Quartz Stainless Steel and Resin Casual Watch, Color Black (Model: AEQ-100W-1BVCF)

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£38.70 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

100-meter water resistance, tele memo memory, world time, stopwatch, countdown timer, 3 daily alarms Hourly time signal, full auto-calendar, 12/24-hour format, approx. Battery life: 10 years on cr2025 Quartz Movement Case Diameter: 47.75mm Water resi... read more

CASIO NEW F91 DIGITAL ALARM SPORTS MEN' S WATCH F91W-1, Digital

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£23.39 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Water Resistant, Micro Light Daily Alarm, 1/100 second digital stopwatch Hourly Time Signal, Auto Calendar, Accuracy: +/-30 seconds per month Battery CR2016, Approx. battery life: 7 years Module 593, Size of case / total weight: 37.5 x 33.5 x 9.5mm /... read more

CASIO Classic Men's Watch in Steel - CA.EFR-571D-1AVUEF

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£120.27 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Solid stainless steel band 3 Years - 1 Battery Solid stainless steel case Neo display

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Casio Classic Watch, Black

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£60.32 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Precise Japan Quartz Movement - Accuracy: +/-20 seconds per month Stainless Steel Case, Leather Strap, Regular Connect Type Buckle Clasp Mineral Crystal, Day/Date Display, 3-Hand Analog Size of case: 46.6 × 39.9 × 8.9 mm Water Resistant - 5 ATM

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Casio 3Hands Classic Analogue Quartz Watch Black/silver

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13% Off £119.00 £102.84 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Casio Edifice EFB-109D-1AVEF Men's Time Only Watch Material: Steel Brand: Casio

Casio A171WE-1A Standard Vintage Watch, Unisex, Classic, Quartz, Digital, Metal, Silver, Black, Bracelet Type

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£42.18 (as of October 9, 2025 19:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

[Size] Case size (H x W x D): 1.5 x 1.4 x 0.3 inches (38.8 x 36.6 x 9.2 mm), Belt: Width approx. 0.6 - 0.8 inches (15 - 20 mm), Weight approx. 1.6 oz (46 g) Material: Case: Resin, Band: Stainless steel, Windproof: Resin glass Waterproof Performance: ... read more