---
product_id: 48587260
title: "Unisex 64.00mm Quartz Watch with LCD Digital dial and Black Strap HS-80TW-1EF"
brand: "casio"
price: "฿7266"
currency: THB
in_stock: true
reviews_count: 8
category: "Casio"
url: https://www.desertcart.co.th/products/48587260-unisex-64-00mm-quartz-watch-with-lcd-digital-dial-black
store_origin: TH
region: Thailand
---

# Auto calendar accuracy Daily alarm reminder 1/1000 sec precision Unisex 64.00mm Quartz Watch with LCD Digital dial and Black Strap HS-80TW-1EF

**Brand:** casio
**Price:** ฿7266
**Availability:** ✅ In Stock

## Summary

> ⏳ Time waits for no one—own precision that keeps you ahead!

## Quick Answers

- **What is this?** Unisex 64.00mm Quartz Watch with LCD Digital dial and Black Strap HS-80TW-1EF by casio
- **How much does it cost?** ฿7266 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/48587260-unisex-64-00mm-quartz-watch-with-lcd-digital-dial-black)

## 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:** Robust design trusted by national-level coaches for years of relentless use without faltering.
- • **Never Miss a Beat:** Set daily alarms that keep your schedule sharp and your day on track with audible reminders.
- • **Set It and Forget It:** Automatic calendar ensures you’re always synced with the correct date—no manual updates needed.
- • **Precision Timing Mastery:** Experience ultra-accurate measurements down to the thousandth of a second—because every millisecond counts.
- • **Game-Changing Referee Function:** Track current play and total elapsed time effortlessly, perfect for managing injury time with zero hassle.

## Overview

The Casio HS-80TW-1EF is a unisex quartz stopwatch featuring ultra-precise 1/1000 second timing, a referee mode for seamless game time tracking, and a reliable daily alarm. Its automatic calendar keeps the date accurate without manual input. Praised for its durability and trusted by professional coaches, this lightweight, black-strap stopwatch combines rugged build quality with essential timing functions to elevate your performance and time management.

## Description

CASIO G-SHOCK Mod. GA-110DN-4ADR SPORT Shock & Magnetic resistant Resin Case & Strap Auto led 29 time zones 5 daily alarms Snooze alarm Hourly Time Signal Countdown Timer Full auto-calendar WR Casio is one of the UK’s top five watch brands, with over one million watches purchased every year. Amongst it's portfolio are classic "toughness" brands G-Shock and Baby-G, motor-sport inspired chronograph range Edifice and the fashionista favourite retro collection of digital watches. With recent advances in Bluetooth and Wave Ceptor technology, Casio continually pushes the boundaries of innovative timepiece design and functionality.

Review: It doesn't fall apart! - I'm a National level swim coach, which means my stopwatches get used 20hrs+ per week. That's a lot of abuse, and most watches these days don't seem capable of standing up to that. The Fast-time range (or their manufacturer) are notorious for buttons falling off or becoming over-sensitive and registering multiple splits in one press! So I was looking around for a watch from a different manufacturer (the casing style gives it away - most brands share the same manufacturer as the one mentioned above) and stumbled across this one on desertcart. Extremely well made, feels robust, and after the first 4 months of (ab)use shows no sign of wear (so I bought a 2nd one). I have around 15 watches in my bag (and another 10 that have fallen apart in recent years), these 2 Casios and a decade old Quantum are the only ones still functioning properly. Some novel features too ... Being able to set a sequence of countdown timers is useful and totally unique among the watches I've seen. It allows you to set up to 10 timers to countdown one after the other. Useful for sets with descending rest intervals. Unfortunately, just like on every other watch, no manufacturer has yet realised how useful it would be to show the running time alongside the countdown time - preferring instead to show time of day (neither use nor ornament). Shouting out athlete's swim times every 5sec is pretty tough when you have to calculate them from the countdown display. Kudos to Casio for being able to increase and decrease timer settings though (press left to decrease, right to increase), that saves time when you carelessly fly past the setting you want and have to scroll all the way round again. Also little things like scrolling through splits backwards and forwards just by pressing the other button. It also lets you choose to show stopwatch times as splits (overall time) or laps (time since last split), although some other watches do it slightly better by showing you both on the screen together - that would have made this watch almost perfect Casio! Absolutely no idea why it gives times to the 1/1000sec though - gimmicky! It's a handheld stopwatch Casio, no one's finger is that accurate! Unfortunately, that just gets confusing in the heat of action. Overall it appears to be an excellent, well made, watch. Here's hoping it stands the test of time (unlike most other stopwatches on the market today) - so far so good. **Update after 3 years** I eventually bought 4 of these and all are still working perfectly despite throwing them around a lot (no battery change yet either). However, the strap is a bit of a problem. It's a unique rubber ring attachment which deteriorates after a while and will snap. Easily replaced of course, but an odd design choice by Casio. **Update after 5 years** Thought this deserved an update after 5 years - no battery change required yet, but due any time now I guess. Of the 6 I have, 1 of the 5 year old watches has froze a few weeks ago. After 5 years of abuse though, that's pretty special. The rest are still like new :-) Just bought another 4 for a junior coach. **Update after 8 years** Yep, I'm back for two more. Out of 6 purchased, 2 have conked out over the years - completely dead screen even after a battery change. After the abuse they get though, still having 4 going strong is outstanding, I've never had watches last this long. Other than the silly strap and lack of stroke rate functionality (easily worked around) these are pretty much perfect.
Review: Excellent piece of kit! - I am a swimming coach and have had my fair share of various stopwatches. This piece is very well made and comes packed with most features you would need (it doesn't calculate a stroke rate, but you can do it yourself, so this doesn't bother me). For me the main thing is the robustness and reliability of the device, which are superb. Highly recommended!

## Features

- Measures with an accuracy of thousandth part seconds the meantime and the end time
- The referee function shows the current play time and the overall time which has already passed in the game, simplifying the calculation of injury time
- The daily alarm reminds you of events that recur every day, by emitting an audible signal at the set time
- Once set, the automatic calendar always displays the correct date

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001JJ8ZLC |
| Best Sellers Rank | 117,113 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 157 in Stopwatches |
| Brand Name | Casio |
| Colour | Black |
| Country Of Origin | China |
| Country of origin | China |
| Customer Reviews | 4.5 out of 5 stars 786 Reviews |
| Item Dimensions D x W x H | 5.5D x 11.7W x 9H centimetres |
| Item Part Number | HS-80TW-1EF |
| Item Type Name | Clock |
| Item Weight | 82 Grams |
| Manufacturer | Casio |
| Manufacturer Part Number | HS-80TW-1EF |
| Manufacturer Warranty Description | 2 years manufacturers warranty. |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | HS-80TW-1EF |
| Number of settings | 3 |
| Screen Size | 4.61 Inches |
| Unit Count | 1.0 count |

## Images

![Unisex 64.00mm Quartz Watch with LCD Digital dial and Black Strap HS-80TW-1EF - Image 1](https://m.media-amazon.com/images/I/61Hux7kZvDL.jpg)

## Questions & Answers

**Q: Does this model beep? Can it be made totally silent?**
A: Mine beeps. Don't know about turning it off.

**Q: Forgive my ignorance - does this count up in second to minutes?**
A: Yes it does count up, hundredths of a second, to seconds, to minutes, to hours. It takes lap splits as laps and cummulative splits. Brilliant stopwatch for swimming officiating. Very reliable. Battery hasn't had to be replaced yet and we are years in... have bought 3 for the family now as so pleased with them.

**Q: Does the watch count up from 45 mins to 90 for football games?**
A: Yes it can but you have to stop it and restart after half time. You would have to probably reset it to start the 2nd half.

**Q: How is it powered, kind of battery or whatever? Ta!**
A: CR 2032 button battery said (in the instructions) to last five years

## Customer Reviews

### ⭐⭐⭐⭐⭐ It doesn't fall apart!
*by D***C on 24 February 2014*

I'm a National level swim coach, which means my stopwatches get used 20hrs+ per week. That's a lot of abuse, and most watches these days don't seem capable of standing up to that. The Fast-time range (or their manufacturer) are notorious for buttons falling off or becoming over-sensitive and registering multiple splits in one press! So I was looking around for a watch from a different manufacturer (the casing style gives it away - most brands share the same manufacturer as the one mentioned above) and stumbled across this one on Amazon. Extremely well made, feels robust, and after the first 4 months of (ab)use shows no sign of wear (so I bought a 2nd one). I have around 15 watches in my bag (and another 10 that have fallen apart in recent years), these 2 Casios and a decade old Quantum are the only ones still functioning properly. Some novel features too ... Being able to set a sequence of countdown timers is useful and totally unique among the watches I've seen. It allows you to set up to 10 timers to countdown one after the other. Useful for sets with descending rest intervals. Unfortunately, just like on every other watch, no manufacturer has yet realised how useful it would be to show the running time alongside the countdown time - preferring instead to show time of day (neither use nor ornament). Shouting out athlete's swim times every 5sec is pretty tough when you have to calculate them from the countdown display. Kudos to Casio for being able to increase and decrease timer settings though (press left to decrease, right to increase), that saves time when you carelessly fly past the setting you want and have to scroll all the way round again. Also little things like scrolling through splits backwards and forwards just by pressing the other button. It also lets you choose to show stopwatch times as splits (overall time) or laps (time since last split), although some other watches do it slightly better by showing you both on the screen together - that would have made this watch almost perfect Casio! Absolutely no idea why it gives times to the 1/1000sec though - gimmicky! It's a handheld stopwatch Casio, no one's finger is that accurate! Unfortunately, that just gets confusing in the heat of action. Overall it appears to be an excellent, well made, watch. Here's hoping it stands the test of time (unlike most other stopwatches on the market today) - so far so good. **Update after 3 years** I eventually bought 4 of these and all are still working perfectly despite throwing them around a lot (no battery change yet either). However, the strap is a bit of a problem. It's a unique rubber ring attachment which deteriorates after a while and will snap. Easily replaced of course, but an odd design choice by Casio. **Update after 5 years** Thought this deserved an update after 5 years - no battery change required yet, but due any time now I guess. Of the 6 I have, 1 of the 5 year old watches has froze a few weeks ago. After 5 years of abuse though, that's pretty special. The rest are still like new :-) Just bought another 4 for a junior coach. **Update after 8 years** Yep, I'm back for two more. Out of 6 purchased, 2 have conked out over the years - completely dead screen even after a battery change. After the abuse they get though, still having 4 going strong is outstanding, I've never had watches last this long. Other than the silly strap and lack of stroke rate functionality (easily worked around) these are pretty much perfect.

### ⭐⭐⭐⭐⭐ Excellent piece of kit!
*by L***Y on 31 July 2025*

I am a swimming coach and have had my fair share of various stopwatches. This piece is very well made and comes packed with most features you would need (it doesn't calculate a stroke rate, but you can do it yourself, so this doesn't bother me). For me the main thing is the robustness and reliability of the device, which are superb. Highly recommended!

### ⭐⭐⭐⭐ Good price and very sturdy
*by I***N on 29 November 2011*

This stop watch is very sturdily built, it feels like it will survive the roughest handling. The display is set well back so it is pretty well protected from accidental damage. There are more modes than anyone could possibly need but isn't that the case of all gadgets nowadays? The manual isn't the easiest to follow and you won't figure this think out by just pressing buttons unless all you need is a basic start-lap-stop-reset functionality. For that it is the same as any stopwatch I have used. It records down to thousandths of a second, totally silly, nobody has reaction times that good. The result is I have to round to the nearest hundredth of a second when timekeeping a swim gala for example. All in a good stopwatch

## Frequently Bought Together

- Casio Unisex 64.00mm Quartz Watch with LCD Digital dial and Black Strap HS-80TW-1EF
- FINIS Memory Stopwatch
- Arena Case for Swimming Goggles – Black/ White/Royal Blue

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-27*