---
product_id: 47900446
title: "Standard B640wc 5aef Watch"
brand: "casio"
price: "VT27124"
currency: VUV
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.vu/products/47900446-standard-b640wc-5aef-watch
store_origin: VU
region: Vanuatu
---

# 50m water resistance for adventure Long-lasting lithium metal battery 1/100th sec stopwatch precision Standard B640wc 5aef Watch

**Brand:** casio
**Price:** VT27124
**Availability:** ✅ In Stock

## Summary

> ⏳ Stay sharp, stay ahead — the Casio B640WC is your timeless edge.

## Quick Answers

- **What is this?** Standard B640wc 5aef Watch by casio
- **How much does it cost?** VT27124 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/47900446-standard-b640wc-5aef-watch)

## 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

- • **Effortless Daily Use:** Multi-alarm and repeat countdown timer keep your busy schedule perfectly on track.
- • **Illuminated Convenience:** LED light ensures you never miss a beat, even in low-light meetings or late-night brainstorming.
- • **Precision Timing, Always:** 1/100th second stopwatch keeps you ahead of every deadline and workout.
- • **Adventure-Ready Durability:** 50m water resistance means rain, hikes, and spontaneous swims won’t slow you down.
- • **Sleek, Unisex Bronze Finish:** A stylish resin case with stainless steel band that fits every wrist and every occasion.

## Overview

The Casio Standard B640WC-5AEF is a unisex digital watch featuring a precise 1/100th second stopwatch, multi-alarm, repeat countdown timer, and LED illumination. Its durable 36mm resin case paired with a stainless steel adjustable band offers a sleek bronze finish suitable for any style. Water resistant up to 50 meters, it’s built for both everyday wear and adventurous lifestyles, powered by a long-lasting lithium metal battery.

## Description

Features: Movement: Digital movement with micro light stop watch alarm and calendar Case: 36mm Resin case Band: Stainless steel band with adjustable clasp Style: M Water Resistance: 50m Unisex watch Colour: Bronze About Casio: The Japanese electronics manufacturer started life in 1946; since then Casio has gone on to create some of the world’s most revolutionary devices ranging from the calculator to the alarm wrist watch. Casio’s high quality designs and functional technology combine form and function to create stylish long lasting products. See All Casio

Review: Lovely Watch, Looks Bronze Rather Than Rose, Great Choice As A Reliable, Tough, Daily Beater - Who knew? Apparently the iconic Casio F-91W watch has a myriad of knock-offs, all over certain auction sites. Not sure about this specific model, but I'm sure there are clones out there in the wild... Luckily, this seems authentic. Although it was a Warehouse purchase (listed as "repackaged") it actually came in a Casio box with Casio tag and documentation. Curiously this is listed as "Rose" colour but as it's Unisex, and would probably be considered a bit of "girly" watch colour, I would say it's more Bronze and could happily be worn by a man. The case itself isn't too big or small and could be worn by either gender. This is a gift, so I had to reset the date and time after receiving it but it's simple enough to do. Great bargain, looks good, works well as a daily beater (been checking it keeps good time - all fine). It's 5 BAR water resistant so I'm sure it will cope in the rain, on day trips hiking and doing more arduous stuff (the recipient is an adventurer at heart and goes camping, hillwalking, etc). I assume the battery will last longer than typical analogue watches, as digitals tend to go on and on.... Posted pictures so you can get a better look at the Rose (cough, Bronze) B640WC-5AEF. The instruction booklet was a bit battered (to be expected for a desertcart Warehouse purchase), that's how it arrived, but everything else was in perfect condition. Re, Casio fakes, what to look out for: The metal bracelet is a dead giveaway, usually it's not well-finished, has sharp edges and "rattles". The movement won't keep good time. Some even have "disco lights" (that cycle different colours) instead of one-colour illumination. Copies also don't have serial numbers on the back of the bracelet - beside the pins that attach to the case. I can see an desertcart reviewer has problems with the clasp - others with the longevity of the finish - both signs of fakes but it's hard for me to comment on a new item. I'll update if I have issues with the Rose (or Bronze) coating. Others are complaining about the face being easily scratched, again, hard for me to say, so soon. (About the F-91W specifically - the "CA510" display, when you press the right button for 5 seconds, doesn't work on most knock-offs. All digits display simultaneously when you press all buttons at once on a genuine F-91W - the B640WC-5AEF doesn't have these little quirks.)
Review: Brilliant! - Beautiful, sleek & well made

## Features

- 1/100th sec stopwatch
- Repeat countdown timer
- Multi alarm
- Led light
- 50m water resistant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B008PDQT6I |
| Batteries  | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | 77,974 in Fashion ( See Top 100 in Fashion ) 435 in Men's Wrist Watches |
| Customer reviews | 4.4 4.4 out of 5 stars (7,673) |
| Date First Available  | 26 July 2012 |
| Department  | Unisex |
| Is discontinued by manufacturer  | No |
| Item model number  | B640WC-5AEF |
| Manufacturer  | CASIO |
| Product Dimensions  | 6 x 10.4 x 9.4 cm; 49 g |

## Images

![Standard B640wc 5aef Watch - Image 1](https://m.media-amazon.com/images/I/71rkiwuxYSL.jpg)

## Questions & Answers

**Q: Is the color rose gold?**
A: Yes, but it's a darker rose gold. The best representation of the color can be found in the customer images of the item. It's a really pretty color!

**Q: Puedo estar segura que es un reloj original??**
A: Si es original

**Q: Is this new and does it come with the box and manual?**
A: Yes its new and it comes with a box and manual. 

**Q: How is the watch band adjusted to make it shorter?**
A: The music is a bit annoying on this video, but it's a good close-up showing you how to do it yourself (not the same watch, of course, but the same adjustable clip on the bracelet) https://www.youtube.com/watch?v=V7mnX8Rr6FkAll you need is a thin screwdriver or something similar.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Lovely Watch, Looks Bronze Rather Than Rose, Great Choice As A Reliable, Tough, Daily Beater
*by É***R on 14 July 2017*

Who knew? Apparently the iconic Casio F-91W watch has a myriad of knock-offs, all over certain auction sites. Not sure about this specific model, but I'm sure there are clones out there in the wild... Luckily, this seems authentic. Although it was a Warehouse purchase (listed as "repackaged") it actually came in a Casio box with Casio tag and documentation. Curiously this is listed as "Rose" colour but as it's Unisex, and would probably be considered a bit of "girly" watch colour, I would say it's more Bronze and could happily be worn by a man. The case itself isn't too big or small and could be worn by either gender. This is a gift, so I had to reset the date and time after receiving it but it's simple enough to do. Great bargain, looks good, works well as a daily beater (been checking it keeps good time - all fine). It's 5 BAR water resistant so I'm sure it will cope in the rain, on day trips hiking and doing more arduous stuff (the recipient is an adventurer at heart and goes camping, hillwalking, etc). I assume the battery will last longer than typical analogue watches, as digitals tend to go on and on.... Posted pictures so you can get a better look at the Rose (cough, Bronze) B640WC-5AEF. The instruction booklet was a bit battered (to be expected for a Amazon Warehouse purchase), that's how it arrived, but everything else was in perfect condition. Re, Casio fakes, what to look out for: The metal bracelet is a dead giveaway, usually it's not well-finished, has sharp edges and "rattles". The movement won't keep good time. Some even have "disco lights" (that cycle different colours) instead of one-colour illumination. Copies also don't have serial numbers on the back of the bracelet - beside the pins that attach to the case. I can see an Amazon reviewer has problems with the clasp - others with the longevity of the finish - both signs of fakes but it's hard for me to comment on a new item. I'll update if I have issues with the Rose (or Bronze) coating. Others are complaining about the face being easily scratched, again, hard for me to say, so soon. (About the F-91W specifically - the "CA510" display, when you press the right button for 5 seconds, doesn't work on most knock-offs. All digits display simultaneously when you press all buttons at once on a genuine F-91W - the B640WC-5AEF doesn't have these little quirks.)

### ⭐⭐⭐⭐⭐ Brilliant!
*by A***R on 30 September 2025*

Beautiful, sleek & well made

### ⭐⭐⭐⭐⭐ This watch is for everyone - not just men!
*by Z***S on 14 July 2016*

I love this watch! I have never really been a watch person and constantly forget to re-put it back on after a shower (or forget to take it off before I get in), but now I am lost if I dont have this on my wrist. I love that as well as an alarm to go off, on either a set day every week/month or every day (to get me out of bed for work), I can also set an hourly beep (reminds me to keep drinking water), a countdown timer (endless uses), and a stopwatch! When I first got this watch I was having to take antibiotics at set times and this watch proved very helpful in reminding me to take them (I am normally useless and setting a phone reminder is often a waste of time as I can leave my phone on a desk and be sat another room). Also if I forget to take the watch off when getting in the shower as I mentioned earlier, its not the end of the world as it has water resistant to 5 bar, which is enough protection in the shower.

## Frequently Bought Together

- Casio Standard B640wc 5aef Watch
- Casio AE-1200WHD-1AVCF
- CASIO STANDARD DIGITAL WATCH WITH LED-LIGHT F-91W-1JF

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-02*