---
product_id: 65792351
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: "¥6954"
currency: JPY
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.jp/products/65792351-f91w-series-digital-watch-water-resistant-led-light-1-100
store_origin: JP
region: Japan
---

# Water Resistant up to 30 feet 7 Year Long-lasting Battery 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:** ¥6954
**Availability:** ✅ In Stock

## Summary

> ⌚ Timeless tech, modern hustle — never miss a second!

## 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?** ¥6954 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/65792351-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

- • **Stay On Schedule, Always:** Daily alarm and regular timekeeping (HR, Min, Sec, PM, Date, Day) keep you ahead of every meeting and milestone.
- • **Effortless Night Visibility:** Subtle LED backlight lets you check the time discreetly without disrupting your flow.
- • **Precision Timing at Your Fingertips:** Experience ultra-accurate 1/100 second stopwatch functionality for flawless time tracking.
- • **All-Day Comfort, All-Week Durability:** Lightweight resin build with a sleek 35.5mm case fits perfectly for daily wear and active lifestyles.
- • **Vintage Style Meets Modern Reliability:** Iconic Casio design with a 7-year battery ensures you never miss a beat or a trend.

## Overview

The Casio F91W Series is a lightweight, water-resistant digital watch featuring a precise 1/100 second stopwatch, LED backlight, and a 7-year battery life. With its classic vintage design, daily alarm, and durable resin construction, it’s the perfect reliable companion for professionals who value both style and functionality.

## Description

Buy Casio Men's 'Vintage' Quartz Plastic and Resin Casual Watch, Color:Black (Model: F-91WM-3ACF) and other Wrist Watches at desertcart.com. Our wide selection is eligible for free shipping and free returns.

Review: Classic Watch and She Loves It! - 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.
Review: Great product great price - 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

## Features

- Band Size: Mens-Standard

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BQXXNQY |
| Additional Features | Alarm, Chronograph |
| Age Range Description | Adult |
| Band Color | Black |
| Band Material Type | Resin |
| Band Width | 19.25 millimeters |
| Bands | 1 |
| Best Sellers Rank | #331 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1 in Men's Wrist Watches |
| Bezel Color | Black |
| Brand Name | Casio |
| Case Diameter | 35.5 millimeters |
| Case Material Type | Resin |
| Case Thickness | 8.38 millimeters |
| Character | Fashion |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | mineral |
| Customer Reviews | 4.6 out of 5 stars 16,517 Reviews |
| Dial Color | Gray |
| Display | Digital |
| Embellishment Feature | Crystal |
| Face Style | Digital |
| Global Trade Identification Number | 00889232187587 |
| Included Components | Band |
| Item Type Name | Watch |
| Item Weight | 22.68 g |
| Manufacturer | Casio |
| Manufacturer Part Number | F-91WM-3ACF |
| Material | Resin |
| Model Name | F-91WM-3ADF |
| Model Number | Casio F91W Serie, model 593 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Power Source | Battery Powered |
| Shape | Square |
| Sport Type | Walking |
| Strap Type | Two Piece Strap |
| Style Name | F91W |
| Theme | Vintage |
| UPC | 889232187587 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 30 feet |
| 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/51CDDdLdj+L.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

### ⭐⭐⭐⭐⭐ Classic Watch and She Loves It!
*by M***R on July 22, 2026*

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.

### ⭐⭐⭐⭐⭐ Great product great price
*by A***N on July 15, 2026*

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

### ⭐⭐⭐⭐⭐ my lovers favorite watch
*by S***M on July 11, 2024*

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.

## 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 Men's Vintage A168WA-1 Electro Luminescence Watch
- 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

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**Shop now:** [https://www.desertcart.jp/products/65792351-f91w-series-digital-watch-water-resistant-led-light-1-100](https://www.desertcart.jp/products/65792351-f91w-series-digital-watch-water-resistant-led-light-1-100)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-06*