---
product_id: 51735783
title: "Digital Watch with Black Resin Strap (F91WG-9QDF)"
brand: "casio"
price: "₨19121"
currency: LKR
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.lk/products/51735783-digital-watch-with-black-resin-strap-f91wg-9qdf
store_origin: LK
region: Sri Lanka
---

# Water resistant ISO 22810 7-year battery life 1/100 sec stopwatch precision Digital Watch with Black Resin Strap (F91WG-9QDF)

**Brand:** casio
**Price:** ₨19121
**Availability:** ✅ In Stock

## Summary

> ⌚ Classic Casio, timeless edge for the modern pro.

## Quick Answers

- **What is this?** Digital Watch with Black Resin Strap (F91WG-9QDF) by casio
- **How much does it cost?** ₨19121 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/51735783-digital-watch-with-black-resin-strap-f91wg-9qdf)

## 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

- • **Daily Smart Alerts:** Stay ahead with a reliable daily alarm and automatic calendar that never misses a beat.
- • **Effortless Visibility:** Built-in side light ensures clear readability anytime, anywhere.
- • **Resilient Resin Design:** Durable, flexible resin strap and case combine comfort with rugged style.
- • **Endurance Battery Power:** Enjoy up to 7 years of uninterrupted performance on a single CR2016 battery.
- • **Precision Timing Mastery:** Track every second with a 1/100 sec stopwatch for flawless time management.

## Overview

The Casio F91WG-9QDF digital watch blends minimalist design with high-functionality, featuring a precise 1/100 second stopwatch, a durable black resin strap, and a 7-year battery life. Water resistant to ISO 22810 standards, it offers daily alarms, an automatic calendar, and a built-in side light for optimal visibility—making it the perfect affordable accessory for professionals who value reliability and style.

## Description

CASIO Japan watch display lighting: a built-in light illuminates the dial of the watch from one side. Stopwatch - 1/100 sec. - 1 hour: The elapsed time, partial times, and end time are measured with an accuracy of hundredths of a second. The watch has a timing capacity of up to an hour. Daily Alarm: The daily alarm emits an audible signal at the set time to remind you of events that recur every day. Automatic Calendar: Once set, the automatic calendar always displays the correct date. Normal 12/24 hour time display Hours are displayed in either 12 or 24 hour format. Resin Case Strap: The bracelet contains resin, an ideal material for this component due to its extreme strength and flexibility. Battery – The battery provides the watch with the necessary energy for approx. 7 years battery type: CR2016 waterproof according to ISO 22810. This model can withstand small splashes of water. Further contact with water should be avoided. Accuracy: +/- 30 seconds Dimensions: 38.20mm x 33.2mm Thickness: 8.5mm Weight: approx. 21.00 g

Review: Superb casio - Classic design Casio that is simple but a humble statement piece. For the very modest price point this watch really is superb and excellent value. It's the usual Casio quality and excellent time keeping you'd expect but at a very affordable price. The display is easy to read in all light and is just the right size without being neither to small or intrusivelu large. Good level water resistance with the usual alarm, hourly charm and back light you want. Very nice watch overall.
Review: Hello - Absolutely spectacular watch, does what it says on the tin, to a very high standard, easy to read the time, displays date and day of the week, fits very well, although it does scuff a little bit easier than I would like, but that's avoidable if your less clumsy than I am, and it is very durable, very good value for money

## Features

- 100% ORIGINAL

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005YOL0RY |
| ASIN  | B005YOL0RY |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Material Type | Resin |
| Band Width | 21 Millimetres |
| Bands | 1 |
| Batteries  | 1 C batteries required. (included) |
| Best Sellers Rank | 3,089 in Fashion ( See Top 100 in Fashion ) 11 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 27 Millimetres |
| Case Material Type | Resin |
| Case Thickness | 8 Millimetres |
| Character | Fashion |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | Crystal |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,611) |
| Customer reviews | 4.2 4.2 out of 5 stars (1,611) |
| Date First Available  | 30 Aug. 2012 |
| Dial Color | Gray |
| Display | Digital |
| Face Style | Modern |
| Global Trade Identification Number | 04971850565895 |
| Included Components | Extra Strap, User Manual |
| Is discontinued by manufacturer  | No |
| Item Shape | Square |
| Item Type Name | watches |
| Item Weight | 23 Grams |
| Item model number  | F-91WG-9QDF |
| Manufacturer | Casio |
| Manufacturer  | Casio |
| Model Name | F-91WG-9QDF |
| Model Number | F-91WG-9QDF |
| Power Source | Battery Powered |
| Product Dimensions  | 18.01 x 19.99 x 11 cm; 23 g |
| Series Number | 9129435 |
| Sport Type | Walking |
| Strap Type | Resin Strap |
| Style Name | Minimalist |
| Watch Movement Type | Quartz |
| Water Resistance Level | Water Resistant |

## Images

![Digital Watch with Black Resin Strap (F91WG-9QDF) - Image 1](https://m.media-amazon.com/images/I/516owngqcTL.jpg)

## Questions & Answers

**Q: Does the buyer have to set the time for UK?**
A: The item is supplied from the uk and will be set to uk time

**Q: Is this a original product from Casio?**
A: Ofcourse genuine I think this is quite a rude question surely Amazon will not allow any other item then original

**Q: is this a copy**
A: 100% CASIO ORIGINAL....

## Customer Reviews

### ⭐⭐⭐⭐⭐ Superb casio
*by J***Y on 20 November 2025*

Classic design Casio that is simple but a humble statement piece. For the very modest price point this watch really is superb and excellent value. It's the usual Casio quality and excellent time keeping you'd expect but at a very affordable price. The display is easy to read in all light and is just the right size without being neither to small or intrusivelu large. Good level water resistance with the usual alarm, hourly charm and back light you want. Very nice watch overall.

### ⭐⭐⭐⭐⭐ Hello
*by M***H on 20 January 2026*

Absolutely spectacular watch, does what it says on the tin, to a very high standard, easy to read the time, displays date and day of the week, fits very well, although it does scuff a little bit easier than I would like, but that's avoidable if your less clumsy than I am, and it is very durable, very good value for money

### ⭐⭐⭐⭐⭐ very good
*by M***A on 26 January 2026*

amazing watch, looks really good, works well, nice value for money

## Frequently Bought Together

- Casio Digital Watch with Black Resin Strap (F91WG-9QDF)
- CASIO STANDARD DIGITAL WATCH WITH LED-LIGHT F-91W-1JF
- Casio F-91W-3DG Black Wrist Watch, Strap

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-14*