---
product_id: 278359061
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: "¥7255"
currency: JPY
in_stock: true
reviews_count: 6
category: "Casio"
url: https://www.desertcart.jp/products/278359061-f91w-series-digital-watch-water-resistant-led-light-1-100
store_origin: JP
region: Japan
---

# 30M Water Resistant 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:** ¥7255
**Availability:** ✅ In Stock

## Summary

> ⌚ Stay sharp, stay classic — the Casio F91W keeps pace with your hustle.

## 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?** ¥7255 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/278359061-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

- • **Precision Timing:** 1/100 second stopwatch for flawless time tracking in every moment.
- • **All-Day Durability:** Water resistant up to 30 meters keeps you ready rain or shine.
- • **Classic Minimalism:** Sleek resin design with a bold blue dial for timeless style.
- • **Long-Lasting Power:** 7-year battery life means worry-free wear and go.
- • **Effortless Visibility:** Bright LED light ensures you never miss a beat, day or night.

## Overview

The Casio F91W Series is a lightweight, water-resistant digital watch featuring a 1/100 second stopwatch, daily alarm, and LED backlight. With a durable resin case and strap, it offers a 7-year battery life and a minimalist blue dial design, making it a reliable and stylish companion for professionals on the move.

## Description

Buy Casio F91W-1 Classic Resin Strap Digital Sport Watch, Clear Blue, Quartz Watch online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: It is what i like to gift - Original good color
Review: Bon materiel - Magnifique

## Features

- Water Resistant, LED light
- Stopwatch, Daily alarm, Hourly time signal
- Calendar, 12/24-hour format
- Approx. battery life: 7 years on CR2016
- Case diameter: 30.0 millimeters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B086RQT2KC |
| Additional Features | Alarm, Calendar, Light Up, Scratch-Resistant, Shock Resistant, Stop Watch, Water Resistant |
| Age Range Description | Adult |
| Band Color | Blue |
| Band Material Type | Plastic |
| Band Width | 20 Millimeters |
| Bands | 2 |
| Best Sellers Rank | #574 in Fashion ( See Top 100 in Fashion ) #16 in Men's Wrist Watches #285 in Women's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 30 Millimeters |
| Case Material Type | Resin |
| Case Thickness | 8 Millimeters |
| Character | no subject character |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Country of Publication | Thailand |
| Crystal | Sapphire Crystal |
| Customer Reviews | 4.7 out of 5 stars 6,265 Reviews |
| Dial Color | Blue |
| Display | Digital |
| Embellishment Feature | Stud |
| Face Style | Minimalist |
| Included Components | Blue Skeleton Resin Band |
| Item Type Name | Watch |
| Item Weight | 77 g |
| Manufacturer | Casio |
| Manufacturer Part Number | F-91WS-2CF |
| Material | Resin |
| Model Name | F-91WS-2CF |
| Model Number | F-91WS-2CF |
| Model Series | F91W |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Power Source | Battery Powered |
| Shape | Square |
| Sport Type | Walking |
| Strap Type | Resin Strap |
| Style Name | Quartz Watch |
| Theme | Sports |
| UPC | 889232261041 |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 30 Meters |
| 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/61Jw4wvf4oL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It is what i like to gift
*by N***R on 17 May 2026*

Original good color

### ⭐⭐⭐⭐⭐ Bon materiel
*by J***A on 13 January 2026*

Magnifique

### ⭐⭐⭐⭐⭐ Calidad de un Casio
*by E***. on 16 June 2026*

Esta precioso me encanto 😍 lo comprare en más colores sin duda

## Frequently Bought Together

- 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
- Casio AE1200WH Series | Men’s Digital Watch | 100M WR | Multi Alarms | 100 SEC Stopwatch | Countdown Timer | World Map for World Time | LED Light | LC Analog Display | 10 Year Battery
- Casio Men's Vintage A168WA-1 Electro Luminescence Watch

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**Shop now:** [https://www.desertcart.jp/products/278359061-f91w-series-digital-watch-water-resistant-led-light-1-100](https://www.desertcart.jp/products/278359061-f91w-series-digital-watch-water-resistant-led-light-1-100)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-14*