---
product_id: 175623334
title: "Casio Men's F91W-1 Classic Black Digital Resin Strap Watch"
brand: "casio"
price: "40347CFA"
currency: XOF
in_stock: true
reviews_count: 13
url: https://www.desertcart.sn/products/175623334-casio-mens-f91w-1-classic-black-digital-resin-strap-watch
store_origin: SN
region: Senegal
---

# Splash-proof water resistance Durable resin strap Quartz precision timing Casio Men's F91W-1 Classic Black Digital Resin Strap Watch

**Brand:** casio
**Price:** 40347CFA
**Availability:** ✅ In Stock

## Summary

> 🕶️ The ultimate no-fuss digital watch that’s been winning hearts since ’89

## Quick Answers

- **What is this?** Casio Men's F91W-1 Classic Black Digital Resin Strap Watch by casio
- **How much does it cost?** 40347CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/175623334-casio-mens-f91w-1-classic-black-digital-resin-strap-watch)

## Best For

- casio enthusiasts

## Why This Product

- Trusted casio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Iconic Minimalist Design:** A retro classic that signals effortless style and nostalgia
- • **Timeless Quartz Accuracy:** Reliable timekeeping that outlasts flashy alternatives
- • **Lightweight Resin Comfort:** All-day wearability with a sleek, black resin strap
- • **Long-lasting Battery Life:** Up to 3 years of uninterrupted performance—set it and forget it
- • **Water Resistant Durability:** Splash-proof resilience for active, on-the-go lifestyles

## Overview

The Casio F91W-1 is a legendary digital watch featuring precise quartz movement, a splash-proof design, and a durable black resin strap. With a 33mm mineral glass face, daily alarm, and a battery life lasting up to 3 years, it’s the perfect blend of retro style and reliable functionality—making it a cult favorite among professionals and trendsetters alike.

## Description

A tried and true style great for casual wear. With its daily alarm, hourly time signal and auto calendar, you’ll never need to worry about missing an appointment again. Black Casual Classic watch with a Resin Band.

Review: Iconic design, accurate timekeeping, a bargain watch - I am not really a fan of digital watches! Except this watch (or one as close to this in looks as makes no difference) was the one that I used during my military training back in 1988... As such, and purely for nostalgia and the retro styling, I bought this. When I bought my original Casio watch back in 1987-88, I think it cost more than £20-£30 (that was quite a lot of money to me then!) so it really was a no-brainer to buy this iconic slice of time-keeping design history for £10 almost 35 years later. It looks slightly incongruous next to the other more traditional watches in my collection but it does have a nostalgic hold over me! So - what do I think about this watch now? It tells the time. It does this simply, accurately and the battery seems to last forever (around 3 years so far - that's longer than one of my more 'flashy' analogue watches costing almost 30 times more from a 'good' manufacturer which seems to go through a battery a year). The display is easy to read and the back light is good enough for night time use (which beats the lume on some of my more expensive watches). It's splash-proof and quite tough - at this price point, I have no qualms about taking this watch out on hiking and cycling trips (which is another plus over some of my other watches). The design is iconic - and it looks cool, not flashy... The only thing that did shock me was that the watch did seem much smaller than I remembered but that is probably just my memory playing tricks. In short - this is a good buy - if you want a functional, iconic and accurate watch it probably can't be beaten! It certainly makes more sense than spending hundreds of pounds!
Review: Possibly the most iconic digital-watch still in production - I bought this renowned watch for its iconic status. Many reviews have already been done on the quality and functionality of the watch, so I'm instead going to add the following interesting facts: 1. Most folk say this watch was released in 1991, but in fact it was released in Japan in 1989. This makes it the longest manufactured digital-watch in history. 2. Casio state that these watches continue to sell around 3 million of these watches worldwide EVERY SINGLE YEAR making it the best selling digital-watch in history. 3. The watch was worn by Barack Obama AND Osama Bin Laden....more or less simultaneously! 4. Due to its construction and availability, the Casio f91w was adopted by terrorists for use as timers in Improvised Explosive Devices. The CIA considered possession of the watch as an identifier for their 'terrorist watch list'. At one point, it is alleged that over 30% of inmates at Guantanamo Bay had been found in possession of either a F-91w or a variation carrying the same module. 5. With a good battery and the watch kept at body-temperature, accuracy over time is said to be more accurate than mechanical/analogue designs....including Rolex! 6. This model has been displayed in the London School of Art, due to its iconic design. 7. Purists refer to this watch as the 'happy meal watch' due to the fact that, wherever you are in the world, the watch generally retails at the same price as a Macdonald's meal. Some people are worried about the 'Water Resist' standard? Well the following is the official standard (ISO 2281) which the watch is able to exceed: Resistance when immersed in water at a depth of 10 cm. Immersion of the watch in 10 cm of water for 1 hour. Immersion of the watch in 10 cm of water with a force of 5 N perpendicular to the pusher buttons for 10 minutes. The watch shall be placed on a heated plate at a temperature between 40 °C and 45 °C until the watch has reached the temperature of the heated plate (in practice, a heating time of 10 minutes to 20 minutes, depending on the type of watch, will be sufficient). A drop of water, at a temperature between 18 °C and 25 °C shall be placed on the glass of the watch. After about 1 minute, the glass shall be wiped with a dry rag. Any watch which has condensation on the interior surface of the glass shall be eliminated. Immersion of the watch in 10 cm of water at the following temperatures for 5 minutes each, 40 °C, 20 °C and 40 °C again, with the transition between temperatures not to exceed 1 minute. No evidence of water intrusion or condensation is allowed. Immersion of the watch in a suitable pressure vessel and subjecting it within 1 minute to the rated pressure for 10 minutes, or to 2 bar in case where no additional indication is given. Then the overpressure is reduced to the ambient pressure within 1 minute. No evidence of water intrusion or condensation is allowed. Exposing the watch to an overpressure of 2 bar. The watch shall show no air-flow exceeding 50 μg/min. (No magnetic or shock resistance properties are required. No negative pressure test is required. No strap attachment test is required. No corrosion test is required) So there you have it: The Casio f91w. Probably the most astute £10 purchase you'll ever make!

## Features

- Core Collection
- Quartz Movement
- Water Resistant
- 37mm Case Diameter
- Mineral Crystal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000GAWSDG |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Material Type | Resin |
| Band Width | 18.5 Millimetres |
| Bands | 1 |
| Best Sellers Rank | 10,213 in Fashion ( See Top 100 in Fashion ) 35 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 33 Millimetres |
| Case Material Type | Stainless Steel |
| Case Thickness | 8 Millimetres |
| Character | Watch |
| Clasp Type | Box Safety Clasp |
| Closure Type | Buckle |
| Crystal | Mineral Glass |
| Customer Reviews | 4.5 out of 5 stars 53,294 Reviews |
| Dial Color | Black |
| Display | Digital |
| Embellishment Feature | Crystal |
| Face Style | F-91W-1 |
| Global Trade Identification Number | 00079767246280 |
| Included Components | Bracelet |
| Item Shape | Rectangular |
| Item Type Name | Casual Watch |
| Item Weight | 1.9 Ounces |
| Manufacturer | CASIO |
| Manufacturer Part Number | F91W-1 |
| Manufacturer Warranty Description | year |
| Model Name | F-91W-1X |
| Model Number | F-91W-1X |
| Model Series | F-91W |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Power Source | Battery Powered |
| Series Number | 91 |
| Special Features | Micro Light, Water Resistant |
| Sport Type | Running, fitness |
| Strap Type | resin strap |
| Style Name | F-91W-1 |
| Theme | Sports |
| UPC | 801134771480 079767246280 |
| Unit Count | 1 Count |
| Warranty Type | Manufacturer |
| Watch Movement Type | Quartz |
| Water Resistance Level | Water Resistant |

## Images

![Casio Men's F91W-1 Classic Black Digital Resin Strap Watch - Image 1](https://m.media-amazon.com/images/I/51mu4w1lJwL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Is it original casio watch?**
A: The best I can tell is yes. There were no obvious signs on the watch or the box that it was counterfeit. I've had it for several months now and it works just like the Casio I bought several years ago at Target.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Iconic design, accurate timekeeping, a bargain watch
*by M***H on 9 October 2021*

I am not really a fan of digital watches! Except this watch (or one as close to this in looks as makes no difference) was the one that I used during my military training back in 1988... As such, and purely for nostalgia and the retro styling, I bought this. When I bought my original Casio watch back in 1987-88, I think it cost more than £20-£30 (that was quite a lot of money to me then!) so it really was a no-brainer to buy this iconic slice of time-keeping design history for £10 almost 35 years later. It looks slightly incongruous next to the other more traditional watches in my collection but it does have a nostalgic hold over me! So - what do I think about this watch now? It tells the time. It does this simply, accurately and the battery seems to last forever (around 3 years so far - that's longer than one of my more 'flashy' analogue watches costing almost 30 times more from a 'good' manufacturer which seems to go through a battery a year). The display is easy to read and the back light is good enough for night time use (which beats the lume on some of my more expensive watches). It's splash-proof and quite tough - at this price point, I have no qualms about taking this watch out on hiking and cycling trips (which is another plus over some of my other watches). The design is iconic - and it looks cool, not flashy... The only thing that did shock me was that the watch did seem much smaller than I remembered but that is probably just my memory playing tricks. In short - this is a good buy - if you want a functional, iconic and accurate watch it probably can't be beaten! It certainly makes more sense than spending hundreds of pounds!

### ⭐⭐⭐⭐⭐ Possibly the most iconic digital-watch still in production
*by M***N on 23 December 2019*

I bought this renowned watch for its iconic status. Many reviews have already been done on the quality and functionality of the watch, so I'm instead going to add the following interesting facts: 1. Most folk say this watch was released in 1991, but in fact it was released in Japan in 1989. This makes it the longest manufactured digital-watch in history. 2. Casio state that these watches continue to sell around 3 million of these watches worldwide EVERY SINGLE YEAR making it the best selling digital-watch in history. 3. The watch was worn by Barack Obama AND Osama Bin Laden....more or less simultaneously! 4. Due to its construction and availability, the Casio f91w was adopted by terrorists for use as timers in Improvised Explosive Devices. The CIA considered possession of the watch as an identifier for their 'terrorist watch list'. At one point, it is alleged that over 30% of inmates at Guantanamo Bay had been found in possession of either a F-91w or a variation carrying the same module. 5. With a good battery and the watch kept at body-temperature, accuracy over time is said to be more accurate than mechanical/analogue designs....including Rolex! 6. This model has been displayed in the London School of Art, due to its iconic design. 7. Purists refer to this watch as the 'happy meal watch' due to the fact that, wherever you are in the world, the watch generally retails at the same price as a Macdonald's meal. Some people are worried about the 'Water Resist' standard? Well the following is the official standard (ISO 2281) which the watch is able to exceed: Resistance when immersed in water at a depth of 10 cm. Immersion of the watch in 10 cm of water for 1 hour. Immersion of the watch in 10 cm of water with a force of 5 N perpendicular to the pusher buttons for 10 minutes. The watch shall be placed on a heated plate at a temperature between 40 °C and 45 °C until the watch has reached the temperature of the heated plate (in practice, a heating time of 10 minutes to 20 minutes, depending on the type of watch, will be sufficient). A drop of water, at a temperature between 18 °C and 25 °C shall be placed on the glass of the watch. After about 1 minute, the glass shall be wiped with a dry rag. Any watch which has condensation on the interior surface of the glass shall be eliminated. Immersion of the watch in 10 cm of water at the following temperatures for 5 minutes each, 40 °C, 20 °C and 40 °C again, with the transition between temperatures not to exceed 1 minute. No evidence of water intrusion or condensation is allowed. Immersion of the watch in a suitable pressure vessel and subjecting it within 1 minute to the rated pressure for 10 minutes, or to 2 bar in case where no additional indication is given. Then the overpressure is reduced to the ambient pressure within 1 minute. No evidence of water intrusion or condensation is allowed. Exposing the watch to an overpressure of 2 bar. The watch shall show no air-flow exceeding 50 μg/min. (No magnetic or shock resistance properties are required. No negative pressure test is required. No strap attachment test is required. No corrosion test is required) So there you have it: The Casio f91w. Probably the most astute £10 purchase you'll ever make!

### ⭐⭐⭐⭐⭐ Fair price
*by L***H on 28 May 2026*

Quality

## Frequently Bought Together

- Casio F91W Digital Sports Watch, Black, 1 Count (Pack of 1), Strap
- Casio A158WA Series | Unisex Digital Watch | Vintage | WR | 100 SEC Stop Watch | Daily Alarm | Regular Time Keeping: Hour, Minute, Second, PM, Date, Day | Led Light | 7 Yr Battery

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-14*