---
product_id: 307151370
title: "Smart Wrist Watch B640WB-1AEF"
brand: "casio"
price: "$460511"
currency: COP
in_stock: true
reviews_count: 6
category: "Casio"
url: https://www.desertcart.co/products/307151370-smart-wrist-watch-b640wb-1aef
store_origin: CO
region: Colombia
---

# Stainless steel band - durable & sleek LED backlight - clear visibility anytime 1/100 sec stopwatch & multi alarms Smart Wrist Watch B640WB-1AEF

**Brand:** casio
**Price:** $460511
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game with classic tech that means business.

## Quick Answers

- **What is this?** Smart Wrist Watch B640WB-1AEF by casio
- **How much does it cost?** $460511 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/307151370-smart-wrist-watch-b640wb-1aef)

## 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 Keep Up:** Water resistant up to 50 meters and powered by a 3-year battery for worry-free, long-lasting performance.
- • **Never Miss a Beat:** Four multifunctional alarms including daily, date, monthly, and custom day alerts to keep your life perfectly organized.
- • **Illuminate Your Schedule:** Vibrant LED backlight and display flasher keep you on track even in low light or busy moments.
- • **Precision Timing, Every Time:** 1/100 second stopwatch and 24-hour countdown timer with auto-repeat for flawless interval tracking.
- • **Timeless Elegance Meets Rugged Durability:** Stainless steel band with adjustable clasp for all-day comfort and a classic professional look.

## Overview

The Casio Smart Wrist Watch B640WB-1AEF combines a sleek stainless steel band with a lightweight acrylic glass face, featuring a sharp LED backlight and multi-functional alarms. Designed for precision, it offers a 1/100 second stopwatch, 24-hour countdown timer with auto-repeat, and an automatic calendar. Water resistant up to 50 meters and powered by a 3-year battery, this watch is the perfect blend of style, durability, and smart functionality for the modern professional.

## Description

Men's watch, stainless steel case black matt, stainless steel strap black, acrylic glass, black dial, water resistant to 5 bar

Review: Highly recommend l - It's beautiful, elegant, and classic
Review: I own a bunch of Casios- the F91-W, the DW290, a few G-Shock squares, and the GW6900; I'd resigned myself to the fact that each one had strengths and weaknesses, and none of them did everything I wanted all at once. So I'm sort of astonished that, upon receiving this watch, it seems to take the best of all of them and combine it into such a great form factor. First: in terms of size, this watch is most akin to the F91-W (see photo for comparison), which I love - it wears light and thin against the wrist, keeping the small size of the 91-W while having a nice rounder side-design. The display is sharp and clear, and is much more akin to the classic DW5600 - you get full day and date display (the F91-W gives only the date and day of the month, not the month itself); also, like the DW5600 and DW290, this has the full basic-module set of functions: alarm, countdown timer, stopwatch (F91-W lacks the timer, which always bugged me). Another thing: while in timer and stopwatch mode, this watch keeps the time of day displayed; this is something that none of the more expensive G-Shocks do, and yet, here it is. Bringing functionality I'd seen only in the DW290, this watch also has the auto-repeat option for the timer - so nice if you're doing things on an interval and don't want to have to keep restarting the alarm. It's a small thing, but it's great to have. Finally, even though the form factor is closest to the F91-W, this watch has a great full-screen orange backlight which stays for about 2.5 seconds, unlike those cheaper models, and the clasp is comfortable and easy to adjust. Just a great watch. Update, one week later: This isn't enough to knock a star off, but the metal bracelet is kind of crappy. I switched it out for the resin strap from an F91-W (pictured), and it fits perfectly.

## Features

- Stainless steel band - Tough, durable and elegant: The stainless steel wrist strap gives your watch that classic feel. Adjustable fastening allows the clasp to be individually adjusted extremely easily for maximum comfort. Light weight acrylic glass screen with a durable resin case.
- LED light - A light-emitting diode (LED) is used to illuminate the watch face. Display Flasher - A light diode flashes as soon as an alarm, a countdown-time or the hour signal has been reached.
- Timer - 1/1 sec. - 24 hours (with automatic repeat). For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. They then count back automatically from the preset time. The time can be set to the nearest second and up to 24 hours in advance - Ideal for people who need to take medicines every day or those who do interval training. Stopwatch function - 1/100 sec. - 24 hours. Elapsed time, split time and final time are measured with 1/100-sec accuracy.
- Multi alarm - This model is equipped with a multifunctional alarm. This clock has the perfect alarm for any type of appointment. The model is equipped with a total of four repeat alarms: 1. Daily alarm, sounds at the same time each day, 2. Date alarm, e.g. to help you remember birthdays, 3. Monthly alarm, sounds on the same day at the same time each month, 4. Alarm for every day of a particular month.
- Automatic calendar with Date, Day and Month - Once set, the automatic calendar always displays the correct date. 12/24-hour timekeeping - Times can be displayed in either a 12-hour or 24-hour format. 3 Years - 1 Battery. The battery supplies the watch with sufficient energy for approx. three years. Water resistance classification (50 metres) This watch can be worn when showering and bathing - it is tested for water resistance up to 50 metres according to ISO 22810.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B084B1RCYQ |
| Batteries  | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #77,823 in Fashion ( See Top 100 in Fashion ) #1,864 in Men's Wrist Watches |
| Customer reviews | 4.5 4.5 out of 5 stars (1,335) |
| Date First Available  | 3 February 2020 |
| Department  | Unisex |
| Item model number  | B640WCG-5EF |
| Manufacturer  | Casio |
| Product Dimensions  | 10 x 10 x 5 cm; 49 g |

## Images

![Smart Wrist Watch B640WB-1AEF - Image 1](https://m.media-amazon.com/images/I/6192YcaNdRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Highly recommend l
*by P***U on 15 September 2025*

It's beautiful, elegant, and classic

### ⭐⭐⭐⭐⭐ Review
*by D***. on 2 July 2020*

I own a bunch of Casios- the F91-W, the DW290, a few G-Shock squares, and the GW6900; I'd resigned myself to the fact that each one had strengths and weaknesses, and none of them did everything I wanted all at once. So I'm sort of astonished that, upon receiving this watch, it seems to take the best of all of them and combine it into such a great form factor. First: in terms of size, this watch is most akin to the F91-W (see photo for comparison), which I love - it wears light and thin against the wrist, keeping the small size of the 91-W while having a nice rounder side-design. The display is sharp and clear, and is much more akin to the classic DW5600 - you get full day and date display (the F91-W gives only the date and day of the month, not the month itself); also, like the DW5600 and DW290, this has the full basic-module set of functions: alarm, countdown timer, stopwatch (F91-W lacks the timer, which always bugged me). Another thing: while in timer and stopwatch mode, this watch keeps the time of day displayed; this is something that none of the more expensive G-Shocks do, and yet, here it is. Bringing functionality I'd seen only in the DW290, this watch also has the auto-repeat option for the timer - so nice if you're doing things on an interval and don't want to have to keep restarting the alarm. It's a small thing, but it's great to have. Finally, even though the form factor is closest to the F91-W, this watch has a great full-screen orange backlight which stays for about 2.5 seconds, unlike those cheaper models, and the clasp is comfortable and easy to adjust. Just a great watch. Update, one week later: This isn't enough to knock a star off, but the metal bracelet is kind of crappy. I switched it out for the resin strap from an F91-W (pictured), and it fits perfectly.

### ⭐⭐⭐⭐⭐ Review
*by C***N on 24 December 2021*

Très belle montre

## Frequently Bought Together

- Casio Smart Wrist Watch B640WB-1AEF
- Casio Women's Digital Quartz Watch with Plastic Strap F-91WB-7AEF, White, Strap
- Casio Digital F-91W-1YEG, Black/White, Bracelet

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-01-30*