---
product_id: 316846450
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: "฿2181"
currency: THB
in_stock: true
reviews_count: 11
category: "Casio"
url: https://www.desertcart.co.th/products/316846450-f91w-series-digital-watch-water-resistant-led-light-1-100
store_origin: TH
region: Thailand
---

# Water Resistant up to 30m 7-Year Long-lasting Battery 1/100 SEC Precision Stopwatch 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:** ฿2181
**Availability:** ✅ In Stock

## Summary

> ⌚ Timeless style meets unstoppable performance 💼

## 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?** ฿2181 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/316846450-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

- • **Built to Endure:** Water resistant up to 30 meters—perfect for your active, on-the-go lifestyle.
- • **Minimalist Chic:** Sleek resin case and strap in trendy pink, blending fashion with function for the modern professional.
- • **Power That Lasts:** Forget frequent charging with an impressive 7-year battery life—reliability you can count on.
- • **Light Up Your Day:** Integrated LED light ensures visibility anytime, anywhere, even in low light.
- • **Effortless Timekeeping:** Stay punctual with clear digital display showing hours, minutes, seconds, day, and date.

## Overview

The Casio F91W Series digital watch combines classic minimalist design with robust features including water resistance up to 30 meters, a precise 1/100 second stopwatch, daily alarm, and an LED backlight. Lightweight and powered by a 7-year battery, it’s engineered for professionals who demand reliability and style in one compact package.

## Description

Buy Casio Quartz Watch with Resin Strap, Pink, 20 (Model: F-91WS-4CF), Clear Pink, Quartz Watch online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: جيد
Review: Good quality, - Good value compared to what i paid.

## 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 | B086RQHJQM |
| ASIN  | B086RQHJQM |
| Age Range Description | Adult |
| Band Color | Pink |
| Band Material Type | Resin |
| Band Width | 20 Millimeters |
| Bands | 1 |
| Batteries  | 1 Product Specific batteries required. (included) |
| Best Sellers Rank | #2,578 in Fashion ( See Top 100 in Fashion ) #67 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 30 Millimeters |
| Case Material Type | Resin |
| Case Thickness | 8 Millimeters |
| Character | Fashion |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Country of Publication | Thailand |
| Country of origin  | Thailand |
| Crystal | Resin |
| Customer Reviews | 4.6 4.6 out of 5 stars (54,497) |
| Customer reviews | 4.6 4.6 out of 5 stars (54,497) |
| Date First Available  | 17 June 2020 |
| Department  | Unisex |
| Dial Color | Gray |
| Display | Digital |
| Embellishment Feature | Crystal |
| Face Style | Minimalist |
| Included Components | Casio Quartz Watch with Resin Strap, Pink, 20 (Model: F-91WS-4CF) |
| Is Discontinued By Manufacturer  | No |
| Item Type Name | Watch |
| Item Weight | 0.17 Pounds |
| Item model number  | F-91WS-4CF |
| Manufacturer | Casio |
| Manufacturer  | Casio |
| Model Name | F-91WS-4CF |
| Model Number | F-91WS-4CF |
| Pattern | Floral |
| Power Source | Battery Powered |
| Product Dimensions  | 15.24 x 15.24 x 10.16 cm; 77.11 g |
| Shape | Square |
| Sport Type | Walking |
| Strap Type | Resin Strap |
| Style Name | Quartz Watch |
| UPC | 889232261072 |
| Unit Count | 1 Count |
| 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/51RDJGyBgFL.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

### ⭐⭐⭐⭐⭐ Review
*by H***N on 14 January 2026*

جيد

### ⭐⭐⭐⭐⭐ Good quality,
*by H***N on 8 January 2024*

Good value compared to what i paid.

### ⭐⭐⭐⭐⭐ Beautiful watch
*by S***K on 18 June 2025*

Beautiful watch

## 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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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-02*