---
product_id: 39743796
title: "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"
brand: "casio"
price: "137.46 DT"
currency: TND
in_stock: true
category: "Casio"
url: https://www.desertcart.tn/products/39743796-f91w-series-digital-watch-water-resistant-led-light-1-100
store_origin: TN
region: Tunisia
---

# LED Light for night visibility 7 Year Battery life 1/100 SEC Stopwatch precision 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

**Brand:** casio
**Price:** 137.46 DT
**Availability:** ✅ In Stock

## Summary

> ⏳ Timeless precision meets modern hustle — never miss a beat!

## Quick Answers

- **What is this?** 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 by casio
- **How much does it cost?** 137.46 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/39743796-f91w-series-digital-watch-water-resistant-led-light-1-100)

## 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

- • **Always On, Always Ready:** 7-year battery ensures your watch keeps pace with your busy lifestyle without a hitch.
- • **Lightweight Vintage Icon:** Classic rectangular resin case and strap combine retro style with featherlight comfort for all-day wear.
- • **Precision Timing Mastery:** Track every split and net time with 1/100 second stopwatch accuracy.
- • **Night Owl’s Best Friend:** Built-in LED light guarantees clear time reading even in the darkest meetings or late-night workouts.
- • **Effortless Daily Organization:** Stay punctual with daily alarms, auto calendar, and hourly time signals tailored for the professional on-the-go.

## Overview

The Casio F91W Series digital watch blends iconic vintage design with practical features like a 1/100 second stopwatch, LED backlight, and a remarkable 7-year battery life. Water resistant and lightweight, it’s engineered for professionals who demand reliability and style in every second.

## Description

Buy Casio Men's 'Vintage' Quartz Metal and Resin Casual Watch, Color:Black (Model: F-91WM-9ACF), Black/Gold and other Wrist Watches at desertcart.com. Our wide selection is eligible for free shipping and free returns.

## Features

- Water resistant, not water proof, do not submerge in water, digital sport watch in rectangle case, alarm, chronograph functions, and night light, quartz movement with digital display
- Measuring modes include net time, split time, and first and second place times, functions include digital stopwatch, hourly time signal, auto calendar, and day/date.
- Quartz Movement
- Case Diameter: 33mm
- Not water resistant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MZF6LL2 |
| ASIN  | B01MZF6LL2 |
| Additional Features | Chronograph, Lightweight, Timer |
| Age Range Description | Adult |
| Band Color | Black |
| Band Length | 8.75 inches |
| Band Material Type | Resin |
| Band Width | 18 millimeters |
| Bands | 1 |
| Batteries  | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #430 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 38.2 millimeters |
| Case Material Type | Resin |
| Case Thickness | 35.2 millimeters |
| Character | Fashion |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | mineral |
| Customer Reviews | 4.6 4.6 out of 5 stars (16,484) |
| Date First Available  | February 10, 2017 |
| Department  | Unisex |
| Dial Color | Gold |
| Display | Digital |
| Embellishment Feature | Crystal |
| Face Style | F91W |
| Global Trade Identification Number | 00889232140810 |
| Included Components | the brand's case |
| Item Type Name | Watch |
| Item Weight | 0.09 kg |
| Item model number  | F91WM-9A |
| Manufacturer | Casio |
| Manufacturer  | Casio |
| Manufacturer Part Number | F-91WM-9ACF |
| Model Name | F-91WM-9ACF |
| Model Number | F91WM-9A |
| Pattern | Solid |
| Power Source | Battery Powered |
| Product Dimensions  | 4.2 x 3 x 2.1 inches; 3.2 ounces |
| Shape | Rectangular |
| Sport Type | Walking |
| Strap Type | Two Piece Strap |
| Style Name | F91W |
| Theme | Sports |
| UPC | 889232140810 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Watch Movement Type | Quartz |
| Water Resistance Level | Water Resistant |

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71lb3BEGGHL.jpg)

## Available Options

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

## Questions & Answers

**Q: How are they charging $10 for this $3 watch from 1990?**
A: Anything that was $3 in 1990 is now $10.  Back in 1990 gas was $1.16/gal.  The average home price was under $150000.  As time moves on prices go up.

**Q: Does the count down timer be set to seconds?**
A: No countdown timer. Look at Model F201WA-1A for that feature.

**Q: how far in depth is the water resist**
A: If you want to be absolutely safe, get the Casio MRW200 dive watch which is good for 100 m.
Casio F91W is water resistant and you could take it in shower, swimming, etc.

**Q: The rubber band broke after 2 years of use. I love this watch and don't want to get a new one. Any tips for a replacement band? Maybe a nylone one?**
A: Aliexpress or ebay you'll find almost exact generic replacements for a couple bucks shipped. Search for words like F91W strap, 18mm watch band. You can also use normal 18mm spring bars instead of the pins that are stock with the F91W.

## Frequently Bought Together

- Casio
- Casio Classic F91W Series Quartz Watch | Water Resistant |1/100 Second Stopwatch | Daily Alarm | Hourly Time Signal |Auto Calendar |SS Caseback |12/24-Hour Format
- CASIO STANDARD DIGITAL WATCH WITH LED-LIGHT F-91W-1JF

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**Shop now:** [https://www.desertcart.tn/products/39743796-f91w-series-digital-watch-water-resistant-led-light-1-100](https://www.desertcart.tn/products/39743796-f91w-series-digital-watch-water-resistant-led-light-1-100)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-08*